結果

問題 No.805 UMG
ユーザー バイトバイト
提出日時 2019-03-22 21:34:14
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 40 ms / 2,000 ms
コード長 50,501 bytes
コンパイル時間 3,436 ms
コンパイル使用メモリ 228,060 KB
実行使用メモリ 6,820 KB
最終ジャッジ日時 2024-11-18 13:15:27
合計ジャッジ時間 4,298 ms
ジャッジサーバーID
(参考情報)
judge5 / judge3
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 25
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

//todo
//#pragma GCC optimize ("-O3")
#include <bits/stdc++.h>
using namespace std;
//@
struct initon {
initon() {
cin.tie(0);
ios::sync_with_stdio(false);
cout.setf(ios::fixed);
cout.precision(16);
srand((unsigned) clock() + (unsigned) time(NULL));
};
} __initon;
//
#define ws ___ws
//@
struct T {
int f, s, t;
T() { f = -1, s = -1, t = -1; }
T(int f, int s, int t) : f(f), s(s), t(t) {}
bool operator<(const T &r) const {
return f != r.f ? f < r.f : s != r.s ? s < r.s : t < r.t;
//return f != r.f ? f > r.f : s != r.s ? s > r.s : t > r.t;
}
bool operator>(const T &r) const {
return f != r.f ? f > r.f : s != r.s ? s > r.s : t > r.t;
//return f != r.f ? f > r.f : s != r.s ? s > r.s : t > r.t;
}
bool operator==(const T &r) const {
return f == r.f && s == r.s && t == r.t;
}
bool operator!=(const T &r) const {
return f != r.f || s != r.s || t != r.t;
}
int operator[](int i) {
assert(i < 3);
return i == 0 ? f : i == 1 ? s : t;
}
};
struct F {
int a, b, c, d;
F() { a = -1, b = -1, c = -1, d = -1; }
F(int a, int b, int c, int d) : a(a), b(b), c(c), d(d) {}
bool operator<(const F &r) const {
return a != r.a ? a < r.a : b != r.b ? b < r.b : c != r.c ? c < r.c : d < r.d;
// return a != r.a ? a > r.a : b != r.b ? b > r.b : c != r.c ? c > r.c : d > r.d;
}
bool operator>(const F &r) const {
return a != r.a ? a > r.a : b != r.b ? b > r.b : c != r.c ? c > r.c : d > r.d;
// return a != r.a ? a < r.a : b != r.b ? b < r.b : c != r.c ? c < r.c : d < r.d;
}
bool operator==(const F &r) const {
return a == r.a && b == r.b && c == r.c && d == r.d;
}
bool operator!=(const F &r) const {
return a != r.a || b != r.b || c != r.c || d != r.d;
}
int operator[](int i) {
assert(i < 4);
return i == 0 ? a : i == 1 ? b : i == 2 ? c : d;
}
};
T mt(int a, int b, int c) {
return T(a, b, c);
}
//@ ,
#define int long long
#define ll long long
#define double long double
#define ull unsigned long long
using dou = double;
using itn = int;
using str = string;
using bo= bool;
#define au auto
using P = pair<ll, ll>;
#define fi first
#define se second
#define vec vector
#define beg begin
#define rbeg rbegin
#define con continue
#define bre break
#define brk break
#define is ==
//
using vi = vector<int>;
#define _overloadvvi(_1, _2, _3, _4, name, ...) name
#define vvi0() vec<vi>
#define vvi1(a) vec<vi> a
#define vvi2(a, b) vec<vi> a(b)
#define vvi3(a, b, c) vec<vi> a(b,vi(c))
#define vvi4(a, b, c, d) vec<vi> a(b,vi(c,d))
#define vvi(...) _overloadvvi(__VA_ARGS__,vvi4,vvi3,vvi2 ,vvi1,vvi0)(__VA_ARGS__)
using vl = vector<ll>;
#define _overloadvvl(_1, _2, _3, _4, name, ...) name
#define vvl1(a) vec<vl> a
#define vvl2(a, b) vec<vl> a(b)
#define vvl3(a, b, c) vec<vl> a(b,vl(c))
#define vvl4(a, b, c, d) vec<vl> a(b,vl(c,d))
#define vvl(...) _overloadvvl(__VA_ARGS__,vvl4,vvl3,vvl2 ,vvl1)(__VA_ARGS__)
using vb = vector<bool>;
#define _overloadvvb(_1, _2, _3, _4, name, ...) name
#define vvb1(a) vec<vb> a
#define vvb2(a, b) vec<vb> a(b)
#define vvb3(a, b, c) vec<vb> a(b,vb(c))
#define vvb4(a, b, c, d) vec<vb> a(b,vb(c,d))
#define vvb(...) _overloadvvb(__VA_ARGS__,vvb4,vvb3,vvb2 ,vvb1)(__VA_ARGS__)
using vs = vector<string>;
#define _overloadvvs(_1, _2, _3, _4, name, ...) name
#define vvs1(a) vec<vs> a
#define vvs2(a, b) vec<vs> a(b)
#define vvs3(a, b, c) vec<vs> a(b,vs(c))
#define vvs4(a, b, c, d) vec<vs> a(b,vs(c,d))
#define vvs(...) _overloadvvs(__VA_ARGS__,vvs4,vvs3,vvs2 ,vvs1)(__VA_ARGS__)
using vd = vector<double>;
#define _overloadvvd(_1, _2, _3, _4, name, ...) name
#define vvd1(a) vec<vd> a
#define vvd2(a, b) vec<vd> a(b)
#define vvd3(a, b, c) vec<vd> a(b,vd(c))
#define vvd4(a, b, c, d) vec<vd> a(b,vd(c,d))
#define vvd(...) _overloadvvd(__VA_ARGS__,vvd4,vvd3,vvd2 ,vvd1)(__VA_ARGS__)
using vc=vector<char>;
#define _overloadvvc(_1, _2, _3, _4, name, ...) name
#define vvc1(a) vec<vc> a
#define vvc2(a, b) vec<vc> a(b)
#define vvc3(a, b, c) vec<vc> a(b,vc(c))
#define vvc4(a, b, c, d) vec<vc> a(b,vc(c,d))
#define vvc(...) _overloadvvc(__VA_ARGS__,vvc4,vvc3,vvc2 ,vvc1)(__VA_ARGS__)
using vp = vector<P>;
#define _overloadvvp(_1, _2, _3, _4, name, ...) name
#define vvp1(a) vec<vp> a
#define vvp2(a, b) vec<vp> a(b)
#define vvp3(a, b, c) vec<vp> a(b,vp(c))
#define vvp4(a, b, c, d) vec<vp> a(b,vp(c,d))
using vt = vector<T>;
#define _overloadvvt(_1, _2, _3, _4, name, ...) name
#define vvt1(a) vec<vt> a
#define vvt2(a, b) vec<vt> a(b)
#define vvt3(a, b, c) vec<vt> a(b,vt(c))
#define vvt4(a, b, c, d) vec<vt> a(b,vt(c,d))
#define v3i(a, b, c, d) vector<vector<vi>> a(b, vector<vi>(c, vi(d)))
#define v3d(a, b, c, d) vector<vector<vd>> a(b, vector<vd>(c, vd(d)))
#define v3m(a, b, c, d) vector<vector<vm>> a(b, vector<vm>(c, vm(d)))
#define _vvi vector<vi>
#define _vvl vector<vl>
#define _vvb vector<vb>
#define _vvs vector<vs>
#define _vvd vector<vd>
#define _vvc vector<vc>
#define _vvp vector<vp>
#define PQ priority_queue<ll, vector<ll>, greater<ll> >
#define tos to_string
using mapi = map<int, int>;
using mapd = map<dou, int>;
using mapc = map<char, int>;
using maps = map<str, int>;
using seti = set<int>;
using setd = set<dou>;
using setc = set<char>;
using sets = set<str>;
using qui = queue<int>;
#define bset bitset
#define uset unordered_set
#define mset multiset
#define umap unordered_map
#define umapi unordered_map<int,int>
#define umapp unordered_map<P,int>
#define mmap multimap
//
#define _overloadrep(_1, _2, _3, _4, name, ...) name
# define _rep(i, n) for(int i = 0,_lim=n; i < _lim ; i++)
#define repi(i, m, n) for(int i = m,_lim=n; i < _lim ; i++)
#define repadd(i, m, n, ad) for(int i = m,_lim=n; i < _lim ; i+= ad)
#define rep(...) _overloadrep(__VA_ARGS__,repadd,repi,_rep,)(__VA_ARGS__)
#define _rer(i, n) for(int i = n; i >= 0 ; i--)
#define reri(i, m, n) for(int i = m,_lim=n; i >= _lim ; i--)
#define rerdec(i, m, n, dec) for(int i = m,_lim=n; i >= _lim ; i-=dec)
#define rer(...) _overloadrep(__VA_ARGS__,rerdec,reri,_rer,)(__VA_ARGS__)
#define fora(a, b) for(auto&& a : b)
#define forg(gi, ve) for (int gi = 0, f, t, c; gi < ve.size() && (f = ve[gi].from, t = ve[gi].to, c = ve[gi].cost, true); gi++)
#define fort(gi, ve) for (int gi = 0, f, t, c; gi < ve.size() && (f = ve[gi].from, t = ve[gi].to, c = ve[gi].cost, true); gi++)if(t!=p)
//#define fort(gi, ve) for (int gi = 0, f, t, c;gi<ve.size()&& (gi+= (ve[gi].to==p))< ve.size() && (f = ve[gi].from,t=ve[gi].to, c = ve[gi].cost
    ,true); gi++)
//
#define k3 1010
#define k4 10101
#define k5 101010
#define k6 1010101
#define k7 10101010
const int inf = (int) 1e9 + 100;
const ll linf = (ll) 1e18 + 100;
const double eps = 1e-9;
const double PI = 3.1415926535897932384626433832795029L;
ll ma = numeric_limits<ll>::min();
ll mi = numeric_limits<ll>::max();
const int y4[] = {-1, 1, 0, 0};
const int x4[] = {0, 0, -1, 1};
const int y8[] = {0, 1, 0, -1, -1, 1, 1, -1};
const int x8[] = {1, 0, -1, 0, 1, -1, 1, -1};
//
#define arsz(a) (sizeof(a)/sizeof(a[0]))
#define sz(a) ((int)(a).size())
#define rs resize
#define mp make_pair
#define pb push_back
#define pf push_front
#define eb emplace_back
#define all(a) (a).begin(),(a).end()
#define rall(a) (a).rbegin(),(a).rend()
//@
//
namespace std {
template<> class hash<std::pair<signed, signed>> {
public:
size_t operator()(const std::pair<signed, signed> &x) const {
return hash<ll>()(((ll) x.first << 32) + x.second);
}
};
template<> class hash<std::pair<ll, ll>> {
public:
//ll<<32
size_t operator()(const std::pair<ll, ll> &x) const {
return hash<ll>()(((ll) x.first << 32) + x.second);
}
};
}
istream &operator>>(istream &iss, P &a) {
iss >> a.first >> a.second;
return iss;
}
template<typename T> istream &operator>>(istream &iss, vector<T> &vec) {
for (T &x: vec) iss >> x;
return iss;
}
ostream &operator<<(ostream &os, P p) {
os << p.fi << " " << p.se << endl;
return os;
}
ostream &operator<<(ostream &os, T p) {
os << p.f << " " << p.s << " " << p.t;
return os;
}
ostream &operator<<(ostream &os, F p) {
os << p.a << " " << p.b << " " << p.c << " " << p.d;
return os;
}
template<typename T> ostream &operator<<(ostream &os, vector <T> &vec) {
for (int i = 0; i < vec.size(); i++)os << vec[i] << (i + 1 == vec.size() ? "" : " ");
return os;
}
template<typename T> ostream &operator<<(ostream &os, vector <vector<T>> &vec) {
for (int i = 0; i < vec.size(); i++) {
for (int j = 0; j < vec[0].size(); j++) {
os << vec[i][j];
}
os << endl;
}
return os;
}
template<typename V, typename H> void resize(vector<V> &vec, const H head) { vec.resize(head); }
template<typename V, typename H, typename ... T> void resize(vector<V> &vec, const H &head, const T ... tail) {
vec.resize(head);
for (auto &v: vec) resize(v, tail...);
}
template<typename T, typename _Pr> bool all_of(const vector<T> &vec, _Pr pred) { return std::all_of(vec.begin(), vec.end(), pred); }
template<typename T, typename _Pr> bool any_of(const vector<T> &vec, _Pr pred) { return std::any_of(vec.begin(), vec.end(), pred); }
template<typename T, typename _Pr> bool none_of(const vector<T> &vec, _Pr pred) { return std::none_of(vec.begin(), vec.end(), pred); }
template<typename T, typename _Pr> const typename vector<T>::const_iterator find_if(const vector<T> &vec, _Pr pred) { return std::find_if(vec.begin
    (), vec.end(), pred); }
template<typename T> bool contains(const vector<T> &vec, const T &val) { return std::find(vec.begin(), vec.end(), val) != vec.end(); }
template<typename T, typename _Pr> bool contains_if(const vector<T> &vec, _Pr pred) { return std::find_if(vec.begin(), vec.end(), pred) != vec.end
    (); }
template<class T> void replace(vector<T> &a, T key, T v) { replace(a.begin(), a.end(), key, v); }
template<class T> bool includes(vector<T> &a, vector<T> &b) {
vi c = a;
vi d = b;
sort(all(c));
sort(all(d));
return includes(all(c), all(d));
}
template<class T> bool is_permutation(vector<T> &a, vector<T> &b) { return is_permutation(all(a), all(b)); }
template<class T> bool next_permutation(vector<T> &a) { return next_permutation(all(a)); }
template<class T> T pop(set<T> &set) {
T res = *set.begin();
set.erase(set.find(res));
return res;
}
template<class T> T pop(mset<T> &set) {
T res = *set.begin();
set.erase(set.find(res));
return res;
}
template<class T> T popBack(set<T> &set) {
T res = *set.rbegin();
set.erase(set.find(res));
return res;
}
template<class T> T popBack(mset<T> &set) {
T res = *set.rbegin();
set.erase(set.find(res));
return res;
}
inline void sort(string &a) { sort(a.begin(), a.end()); }
template<class T> inline void sort(vector<T> &a) { sort(a.begin(), a.end()); };
template<class T> inline void sort(vector<T> &a, int len) { sort(a.begin(), a.begin() + len); };
template<class T, class F> inline void sort(vector<T> &a, F f) { sort(a.begin(), a.end(), [&](T l, T r) { return f(l) < f(r); }); };
enum ___pcomparator {
fisi, fisd, fdsi, fdsd, sifi, sifd, sdfi, sdfd
};
inline void sort(vector<P> &a, ___pcomparator type) {
switch (type) {
case fisi:
sort(all(a), [&](P l, P r) { return l.fi != r.fi ? l.fi < r.fi : l.se < r.se; });
break;
case fisd:
sort(all(a), [&](P l, P r) { return l.fi != r.fi ? l.fi < r.fi : l.se > r.se; });
break;
case fdsi:
sort(all(a), [&](P l, P r) { return l.fi != r.fi ? l.fi > r.fi : l.se < r.se; });
break;
case fdsd:
sort(all(a), [&](P l, P r) { return l.fi != r.fi ? l.fi > r.fi : l.se > r.se; });
break;
case sifi:
sort(all(a), [&](P l, P r) { return l.se != r.se ? l.se < r.se : l.fi < r.fi; });
break;
case sifd:
sort(all(a), [&](P l, P r) { return l.se != r.se ? l.se < r.se : l.fi > r.fi; });
break;
case sdfi:
sort(all(a), [&](P l, P r) { return l.se != r.se ? l.se > r.se : l.fi < r.fi; });
break;
case sdfd:
sort(all(a), [&](P l, P r) { return l.se != r.se ? l.se > r.se : l.fi > r.fi; });
break;
}
};
inline void sort(vector<T> &a, ___pcomparator type) {
switch (type) {
case fisi:
sort(all(a), [&](T l, T r) { return l.f != r.f ? l.f < r.f : l.s < r.s; });
break;
case
fisd:
sort(all(a), [&](T l, T r) { return l.f != r.f ? l.f < r.f : l.s > r.s; });
break;
case
fdsi:
sort(all(a), [&](T l, T r) { return l.f != r.f ? l.f > r.f : l.s < r.s; });
break;
case
fdsd:
sort(all(a), [&](T l, T r) { return l.f != r.f ? l.f > r.f : l.s > r.s; });
break;
case
sifi:
sort(all(a), [&](T l, T r) { return l.s != r.s ? l.s < r.s : l.f < r.f; });
break;
case
sifd:
sort(all(a), [&](T l, T r) { return l.s != r.s ? l.s < r.s : l.f > r.f; });
break;
case
sdfi:
sort(all(a), [&](T l, T r) { return l.s != r.s ? l.s > r.s : l.f < r.f; });
break;
case
sdfd:
sort(all(a), [&](T l, T r) { return l.s != r.s ? l.s > r.s : l.f > r.f; });
break;
}
};
template<class T> inline void rsort(vector<T> &a) { sort(a.begin(), a.end(), greater<T>()); };
template<class T> inline void rsort(vector<T> &a, int len) { sort(a.begin(), a.begin() + len, greater<T>()); };
template<class U, class F> inline void rsort(vector<U> &a, F f) { sort(a.begin(), a.end(), [&](U l, U r) { return f(l) > f(r); }); };
template<class U> inline void sortp(vector<U> &a, vector<U> &b) {
vp c;
int n = sz(a);
assert(n == sz(b));
rep(i, n)c.eb(a[i], b[i]);
sort(c);
rep(i, n) {
a[i] = c[i].first;
b[i] = c[i].second;;
}
};
//F = T<T>
//return p.fi + p.se;
template<class U, class F> inline void sortp(vector<U> &a, vector<U> &b, F f) {
vp c;
int n = sz(a);
assert(n == sz(b));
rep(i, n)c.eb(a[i], b[i]);
sort(c, f);
rep(i, n) {
a[i] = c[i].first;
b[i] = c[i].second;
}
};
template<class U, class F> inline void sortp(vector<U> &a, vector<U> &b, char type) {
vp c;
int n = sz(a);
assert(n == sz(b));
rep(i, n)c.eb(a[i], b[i]);
sort(c, type);
rep(i, n) {
a[i] = c[i].first;
b[i] = c[i].second;
}
};
template<class U> inline void rsortp(vector<U> &a, vector<U> &b) {
vp c;
int n = sz(a);
assert(n == sz(b));
rep(i, n)c.eb(a[i], b[i]);
rsort(c);
rep(i, n) {
a[i] = c[i].first;
b[i] = c[i].second;
}
};
template<class U, class F> inline void rsortp(vector<U> &a, vector<U> &b, F f) {
vp c;
int n = sz(a);
assert(n == sz(b));
rep(i, n)c.eb(a[i], b[i]);
rsort(c, f);
rep(i, n) {
a[i] = c[i].first;
b[i] = c[i].second;
}
};
template<class U> inline void sortt(vector<U> &a, vector<U> &b, vector<U> &c) {
vt r;
int n = sz(a);
assert(n == sz(b));
assert(n == sz(c));
rep(i, n)r.eb(a[i], b[i], c[i]);
sort(r);
rep(i, n) {
a[i] = r[i].f;
b[i] = r[i].s;
c[i] = r[i].t;
}
};
template<class U, class F> inline void sortt(vector<U> &a, vector<U> &b, vector<U> &c, F f) {
vt r;
int n = sz(a);
assert(n == sz(b));
assert(n == sz(c));
rep(i, n)r.eb(a[i], b[i], c[i]);
sort(r, f);
rep(i, n) {
a[i] = r[i].f;
b[i] = r[i].s;
c[i] = r[i].t;
}
};
template<class U, class F> inline void rsortt(vector<U> &a, vector<U> &b, vector<U> &c, F f) {
vt r;
int n = sz(a);
assert(n == sz(b));
assert(n == sz(c));
rep(i, n)r.eb(a[i], b[i], c[i]);
rsort(r, f);
rep(i, n) {
a[i] = r[i].f;
b[i] = r[i].s;
c[i] = r[i].t;
}
};
template<class T> inline void sort2(vector<vector<T>> &a) { for (int i = 0, n = a.size(); i < n; i++)sort(a[i]); }
template<class T> inline void rsort2(vector<vector<T>> &a) { for (int i = 0, n = a.size(); i < n; i++)rsort(a[i]); }
template<typename A, size_t N, typename T> void fill(A (&a)[N], const T &v) { rep(i, N)a[i] = v; }
template<typename A, size_t N, size_t O, typename T> void fill(A (&a)[N][O], const T &v) { rep(i, N)rep(j, O)a[i][j] = v; }
template<typename A, size_t N, size_t O, size_t P, typename T> void fill(A (&a)[N][O][P], const T &v) { rep(i, N)rep(j, O)rep(k, P)a[i][j][k] = v; }
template<typename A, size_t N, size_t O, size_t P, size_t Q, typename T> void fill(A (&a)[N][O][P][Q], const T &v) { rep(i, N)rep(j, O)rep(k, P)rep
    (l, Q)a[i][j][k][l] = v; }
template<typename A, size_t N, size_t O, size_t P, size_t Q, size_t R, typename T> void fill(A (&a)[N][O][P][Q][R], const T &v) { rep(i, N)rep(j, O
    )rep(k, P)rep(l, Q)rep(m, R)a[i][j][k][l][m] = v; }
template<typename A, size_t N, size_t O, size_t P, size_t Q, size_t R, size_t S, typename T> void fill(A (&a)[N][O][P][Q][R][S], const T &v) { rep(i
    , N)rep(j, O)rep(k, P)rep(l, Q)rep(m, R)rep(n, S)a[i][j][k][l][m][n] = v; }
template<typename V, typename T>
void fill(V &xx, const T vall) {
xx = vall;
}
template<typename V, typename T>
void fill(vector<V> &vecc, const T vall) {
for (auto &&vx: vecc) fill(vx, vall);
}
//@便
template<typename T = int> T _in() {
T x;
cin >> x;
return (x);
}
#define _overloadin(_1, _2, _3, _4, name, ...) name
#define in0() _in()
#define in1(a) cin>>a
#define in2(a, b) cin>>a>>b
#define in3(a, b, c) cin>>a>>b>>c
#define in4(a, b, c, d) cin>>a>>b>>c>>d
#define in(...) _overloadin(__VA_ARGS__,in4,in3,in2 ,in1,in0)(__VA_ARGS__)
#define _overloaddin(_1, _2, _3, _4, name, ...) name
#define din1(a) int a;cin>>a
#define din2(a, b) int a,b;cin>>a>>b
#define din3(a, b, c) int a,b,c;cin>>a>>b>>c
#define din4(a, b, c, d) int a,b,c,d;cin>>a>>b>>c>>d
#define din(...) _overloadin(__VA_ARGS__,din4,din3,din2 ,din1)(__VA_ARGS__)
#define _overloaddind(_1, _2, _3, _4, name, ...) name
#define din1d(a) int a;cin>>a;a--
#define din2d(a, b) int a,b;cin>>a>>b;a--,b--
#define din3d(a, b, c) int a,b,c;cin>>a>>b>>c;a--,b--,c--
#define din4d(a, b, c, d) int a,b,c,d;cin>>a>>b>>c>>d;;a--,b--,c--,d--
#define dind(...) _overloaddind(__VA_ARGS__,din4d,din3d,din2d ,din1d)(__VA_ARGS__)
#define _overloadout(_1, _2, _3, _4, name, ...) name
#define out1(a) cout<<a<<endl
#define out2(a, b) cout<<a<<" "<< b<<endl
#define out3(a, b, c) cout<<a<<" "<<b<<" "<<c<<endl
#define out4(a, b, c, d) cout<<a<<" "<<b<<" "<<c<<" "<<d<<endl
#define out(...) _overloadout(__VA_ARGS__,out4,out3,out2,out1)(__VA_ARGS__)
string sin() { return _in<string>(); }
ll lin() { return _in<ll>(); }
#define na(a, n) a.resize(n); rep(i,n) cin >> a[i];
#define nao(a, n) a.resize(n+1); rep(i,n) cin >> a[i+1];
#define nad(a, n) a.resize(n); rep(i,n){ cin >> a[i]; a[i]--;}
#define na2(a, b, n) a.resize(n),b.resize(n);rep(i, n)cin >> a[i] >> b[i];
#define na2d(a, b, n) a.resize(n),b.resize(n);rep(i, n){cin >> a[i] >> b[i];a[i]--,b[i]--;}
#define na3(a, b, c, n) a.resize(n),b.resize(n),c.resize(n); rep(i, n)cin >> a[i] >> b[i] >> c[i];
#define na3d(a, b, c, n) a.resize(n),b.resize(n),c.resize(n); rep(i, n){cin >> a[i] >> b[i] >> c[i];a[i]--,b[i]--,c[i]--;}
#define nt(a, h, w) resize(a,h,w);rep(hi,h)rep(wi,w) cin >> a[hi][wi];
#define ntd(a, h, w) rs(a,h,w);rep(hi,h)rep(wi,w) cin >> a[hi][wi], a[hi][wi]--;
#define ntp(a, h, w) fill(a,'#');rep(hi,1,h+1)rep(wi,1,w+1) cin >> a[hi][wi];
//
#define sp << " " <<
#define debugName(VariableName) # VariableName
#define _deb1(x) cerr << debugName(x)<<" = "<<x << endl
#define _deb2(x, y) cerr << debugName(x)<<" = "<<x<<", "<< debugName(y)<<" = "<<y<< endl
#define _deb3(x, y, z) cerr << debugName(x)<<" = "<<x << ", " << debugName(y)<<" = "<<y <<", " debugName(z)<<" = "<<z <<endl
#define _deb4(x, y, z, a) cerr << debugName(x)<<" = "<<x <<", " << debugName(y)<<" = "<<y <<", " << debugName(z)<<" = "<<z <<", " << debugName
    (a)<<" = "<<a<<endl
#define _deb5(x, y, z, a, b) cerr << debugName(x)<<" = "<<x <<", " << debugName(y)<<" = "<<y <<", " << debugName(z)<<" = "<<z <<", " <<
    debugName(a)<<" = "<<a<<", " << debugName(b)<<" = "<<b<<endl
#define _overloadebug(_1, _2, _3, _4, _5, name, ...) name
#define debug(...) _overloadebug(__VA_ARGS__,_deb5,_deb4,_deb3,_deb2,_deb1)(__VA_ARGS__)
#define deb(...) _overloadebug(__VA_ARGS__,_deb5,_deb4,_deb3,_deb2,_deb1)(__VA_ARGS__)
#define debugline(x) cerr << x << " " << "(L:" << __LINE__ << ")" << '\n'
//使
class UnionFind {
public:
vi par, rank, sizes;
int n, trees;
UnionFind(int n) : n(n), trees(n) {
par.resize(n), rank.resize(n), sizes.resize(n);
rep(i, n)par[i] = i, sizes[i] = 1;
}
int root(int x) {
if (par[x] == x)return x;
else return par[x] = root(par[x]);
}
int find(int x) { return root(x); }
void unite(int x, int y) {
x = root(x);
y = root(y);
if (x == y)return;
if (rank[x] < rank[y])swap(x, y);
trees--;
par[y] = x;
sizes[x] += sizes[y];
if (rank[x] == rank[y])rank[x]++;
}
bool same(int x, int y) { return root(x) == root(y); }
int size(int x) { return sizes[root(x)]; }
// umap
vec<vi> sets() {
vec<vi> res(trees);
umap<int, vi> map;
rep(i, n) map[root(i)].push_back(i);
int i = 0;
for (auto &&p:map) {
int r = p.fi;
res[i].push_back(r);
for (auto &&v:p.se) {
if (r == v)continue;
res[i].push_back(v);
}
i++;
}
return res;
}
};
vb isPrime;
vi primes;
void setPrime() {
int len = 4010101;
isPrime.resize(4010101);
fill(isPrime, true);
isPrime[0] = isPrime[1] = false;
for (int i = 2; i <= sqrt(len) + 5; ++i) {
if (!isPrime[i])continue;
for (int j = 2; i * j < len; ++j) {
isPrime[i * j] = false;
}
}
rep(i, len)if (isPrime[i])primes.pb(i);
}
// Pcomplex
bool eq(double a, double b) { return fabs(a - b) < eps; }
using C =complex<double>;
C rot(C &a, dou th) { return a * C(cos(th), sin(th)); }
dou inpro(C &a, C &b) { return real(a * conj(b)); }
//900
bool line(C a, C b, C c) {
C ab = b - a;
C ac = c - a;
//
ab *= C(0, 1);
return eq(inpro(ab, ac), 0);
}
bool line(P a, P b, P c) { return line(C(a.fi, a.se), C(b.fi, b.se), C(c.fi, c.se)); }
bool line(int xa, int ya, int xb, int yb, int xc, int yc) {
C a = C(xa, ya);
C b = C(xb, yb);
C c = C(xc, yc);
return line(a, b, c);
}
//便
//
char ranc() {
return (char) ('a' + rand() % 26);
}
int rand(int min, int max) {
assert(min <= max);
if (min >= 0 && max >= 0) {
return rand() % (max + 1 - min) + min;
} else if (max < 0) {
return -rand(-max, -min);
} else {
//+
if (rand() % 2) {
return rand(0, max);
//-
} else {
return -rand(0, -min);
}
}
}
vi ranv(int n, int min, int max) {
vi v(n);
rep(i, n)v[i] = rand(min, max);
return v;
}
//調
vi ranvi(int n, int min, int max) {
vi v(n);
bool bad = 1;
while (bad) {
bad = 0;
v.resize(n);
rep(i, n) {
if (i && min > max - v[i - 1]) {
bad = 1;
break;
}
if (i)v[i] = v[i - 1] + rand(min, max - v[i - 1]);
else v[i] = rand(min, max);
}
}
return v;
}
void ranvlr(int n, int min, int max, vi &l, vi &r) {
l.resize(n);
r.resize(n);
rep(i, n) {
l[i] = rand(min, max);
r[i] = l[i] + rand(0, max - l[i]);
}
}
//便
//str
string smax(str &a, str b) {
if (sz(a) < sz(b)) {
return b;
} else if (sz(a) > sz(b)) {
return a;
} else {
rep(i, sz(a)) {
if (a[i] < b[i]) {
return b;
} else if (a[i] > b[i])return a;
}
}
return a;
}
//str
string smin(str &a, str b) {
if (sz(a) < sz(b)) {
return a;
} else if (sz(a) > sz(b)) {
return b;
} else {
rep(i, sz(a)) {
if (a[i] < b[i]) {
return a;
} else if (a[i] > b[i])return b;
}
}
return a;
}
template<typename V, typename T> int find(vector<V> &a, const T key) {
rep(i, sz(a))if (a[i] == key)return i;
return -1;
}
template<typename V, typename T> P find(vector<vector<V>> &a, const T key) {
rep(i, sz(a)) rep(j, sz(a[0]))if (a[i][j] == key)return mp(i, j);
return mp(-1, -1);
}
template<typename V, typename U> T find(vector<vector<vector<V>>> &a, const U key) {
rep(i, sz(a))rep(j, sz(a[0]))rep(k, sz(a[0][0]))if (a[i][j][k] == key)return mt(i, j, k);
return mt(-1, -1, -1);
}
template<typename V, typename T> int count(V &a, const T k) { return a == k; }
template<typename V, typename T> int count(vector<V> &a, const T k) {
int ret = 0;
fora(v, a)ret += count(v, k);
return ret;
}
template<typename V> int count_odd(V &a) { return a % 2; }
template<typename V> int count_odd(vector<V> &a) {
int ret = 0;
fora(v, a)ret += count_odd(v);
return ret;
}
template<typename V> int count_even(V &a) { return a % 2 == 0; }
template<typename V> int count_even(vector<V> &a) {
int ret = 0;
fora(v, a)ret += count_even(v);
return ret;
}
//algorythm
void iota(vector<int> &ve, int s, int n) {
ve.resize(n);
iota(all(ve), s);
}
vi iota(int s, int n) {
vi ve(n);
iota(all(ve), s);
return ve;
}
//便
int mod(int a, int m) { return (a % m + m) % m; }
int pow(int a) { return a * a; };
ll fact(int v) { return v <= 1 ? 1 : v * fact(v - 1); }
ll comi(int n, int r) {
assert(n < 100);
static vvi(pas, 100, 100);
if (pas[0][0])return pas[n][r];
pas[0][0] = 1;
rep(i, 1, 100) {
pas[i][0] = 1;
rep(j, 1, i + 1)pas[i][j] = pas[i - 1][j - 1] + pas[i - 1][j];
}
return pas[n][r];
}
void ole() {
#ifdef _DEBUG
debugline("ole");
exit(0);
#endif
string a = "a";
rep(i, 30)a += a;
rep(i, 1 << 17)cout << a << endl;
cout << "OLE " << endl;
exit(0);
}
void tle() { while (inf)cout << inf << endl; }
ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; }
ll gcd(vi b) {
ll res = b[0];
for (auto &&v :b)res = gcd(v, res);
return res;
}
ll lcm(ll a, ll b) { return a / gcd(a, b) * b; }
ll rev(ll a) {
ll res = 0;
while (a) {
res *= 10;
res += a % 10;
a /= 10;
}
return res;
}
template<class T> vector<T> rev(vector<T> &a) {
vector<T> ret = a;
reverse(all(ret));
return ret;
}
ll ceil(ll a, ll b) {
if (b == 0) {
debugline("ceil");
deb(a, b);
ole();
return -1;
} else return (a + b - 1) / b;
}
ll sqrt(ll a) {
if (a < 0) {
debugline("sqrt");
deb(a);
ole();
}
ll res = (ll) std::sqrt(a);
while (res * res < a)res++;
return res;
}
double log(double e, double x) { return log(x) / log(e); }
ll sig(ll t) { return (1 + t) * t / 2; }
ll sig(ll s, ll t) { return (s + t) * (t - s + 1) / 2; }
vi divisors(int v) {
vi res;
for (int i = 1; i <= sqrt(v); ++i) {
if (v % i == 0) {
res.pb(i);
if (i != v / i)res.pb(v / i);
}
}
return res;
}
vi factorization(int v) {
int tv = v;
vi res;
if (isPrime.size() == 0)setPrime();
for (auto &&p :primes) {
if (v % p == 0)res.push_back(p);
while (v % p == 0) {
v /= p;
}
if (v == 1 || p * p > tv)break;
}
if (v > 1)res.pb(v);
return res;
}
unordered_map<int, int> factorizationMap(int v) {
int tv = v;
unordered_map<int, int> res;
if (isPrime.size() == 0)setPrime();
for (auto &&p :primes) {
while (v % p == 0) {
res[p]++;
v /= p;
}
if (v == 1 || p * p > tv)break;
}
if (v > 1)res[v]++;
return res;
}
int get(int a, int keta) { return (a / (int) pow(10, keta)) % 10; }
int keta(int v) {
int cou = 0;
while (v) { cou++, v %= 10; }
return cou;
}
int dsum(int v) {
int ret = 0;
for (; v; v /= 10)ret += v % 10;
return ret;
}
int sumd(int v) { return dsum(v); }
//
template<class T, class U> vector<T> keys(vector<pair<T, U>> a) {
vector<T> res;
for (auto &&k :a)res.pb(k.fi);
return res;
}
template<class T, class U> vector<U> keys(map<T, U> a) {
vector<U> res;
for (auto &&k :a)res.pb(k.fi);
return res;
}
template<class T, class U> vector<U> keys(umap<T, U> a) {
vector<U> res;
for (auto &&k :a)res.pb(k.fi);
return res;
}
template<class T, class U> vector<U> values(vector<pair<T, U>> a) {
vector<U> res;
for (auto &&k :a)res.pb(k.se);
return res;
}
template<class T, class U> vector<T> values(map<T, U> a) {
vector<T> res;
for (auto &&k :a)res.pb(k.se);
return res;
}
template<class T, class U> vector<T> values(umap<T, U> a) {
vector<T> res;
for (auto &&k :a)res.pb(k.se);
return res;
}
vi list(int a) {
vi res;
while (a) {
res.insert(res.begin(), a % 10);
a /= 10;
}
return res;
}
template<class T, class U> bool chmax(T &a, const U &b) {
if (a < b) {
a = b;
return true;
}
return false;
}
template<class U> bool chmax(const U &b) { return chmax(ma, b); }
template<class T, class U> bool chmin(T &a, const U &b) {
if (b < a) {
a = b;
return true;
}
return false;
}
template<class U> bool chmin(const U &b) { return chmin(mi, b); }
#define chmi chmin
#define chma chmax
template<class T> T min(T a, signed b) { return a < b ? a : b; }
template<class T> T max(T a, signed b) { return a < b ? b : a; }
template<class T> T min(T a, T b, T c) { return a >= b ? b >= c ? c : b : a >= c ? c : a; }
template<class T> T max(T a, T b, T c) { return a <= b ? b <= c ? c : b : a <= c ? c : a; }
template<class T> T min(vector<T> a) { return *min_element(all(a)); }
template<class T> T min(vector<T> a, int n) { return *min_element(a.begin(), a.begin() + min(n, sz(a))); }
template<class T> T min(vector<T> a, int s, int n) { return *min_element(a.begin() + s, a.begin() + min(n, sz(a))); }
template<class T> T max(vector<T> a) { return *max_element(all(a)); }
template<class T> T max(vector<T> a, int n) { return *max_element(a.begin(), a.begin() + min(n, sz(a))); }
template<class T> T max(vector<T> a, int s, int n) { return *max_element(a.begin() + s, a.begin() + min(n, sz(a))); }
template<typename A, size_t N> A max(A (&a)[N]) {
A res = a[0];
rep(i, N)res = max(res, a[i]);
return res;
}
template<typename A, size_t N, size_t O> A max(A (&a)[N][O]) {
A res = max(a[0]);
rep(i, N)res = max(res, max(a[i]));
return res;
}
template<typename A, size_t N, size_t O, size_t P> A max(A (&a)[N][O][P]) {
A res = max(a[0]);
rep(i, N)res = max(res, max(a[i]));
return res;
}
template<typename A, size_t N, size_t O, size_t P, size_t Q> A max(A (&a)[N][O][P][Q], const T &v) {
A res = max(a[0]);
rep(i, N)res = max(res, max(a[i]));
return res;
}
template<typename A, size_t N, size_t O, size_t P, size_t Q, size_t R> A max(A (&a)[N][O][P][Q][R]) {
A res = max(a[0]);
rep(i, N)res = max(res, max(a[i]));
return res;
}
template<typename A, size_t N, size_t O, size_t P, size_t Q, size_t R, size_t S> A max(A (&a)[N][O][P][Q][R][S]) {
A res = max(a[0]);
rep(i, N)res = max(res, max(a[i]));
return res;
}
template<typename A, size_t N> A min(A (&a)[N]) {
A res = a[0];
rep(i, N)res = min(res, a[i]);
return res;
}
template<typename A, size_t N, size_t O> A min(A (&a)[N][O]) {
A res = min(a[0]);
rep(i, N)res = min(res, max(a[i]));
return res;
}
template<typename A, size_t N, size_t O, size_t P> A min(A (&a)[N][O][P]) {
A res = min(a[0]);
rep(i, N)res = min(res, min(a[i]));
return res;
}
template<typename A, size_t N, size_t O, size_t P, size_t Q> A min(A (&a)[N][O][P][Q], const T &v) {
A res = min(a[0]);
rep(i, N)res = min(res, min(a[i]));
return res;
}
template<typename A, size_t N, size_t O, size_t P, size_t Q, size_t R> A min(A (&a)[N][O][P][Q][R]) {
A res = min(a[0]);
rep(i, N)res = min(res, min(a[i]));
return res;
}
template<typename A, size_t N, size_t O, size_t P, size_t Q, size_t R, size_t S> A min(A (&a)[N][O][P][Q][R][S]) {
A res = min(a[0]);
rep(i, N)res = min(res, min(a[i]));
return res;
}
template<class T> T sum(vector<T> v, int len = -1) {
if (len == -1)len = v.size();
T res = 0;
chmin(len, v.size());
rep(i, len)res += v[i];
return res;
}
template<class T> T sum(vector<vector<T>> &v, int h = -1, int w = -1) {
if (h == -1)h = v.size();
if (w == -1)w = v[0].size();
T res = 0;
chmin(h, v.size());
chmin(w, v[0].size());
rep(i, h)rep(j, w)res += v[i][j];
return res;
}
P sump(vp &v, int len = -1) {
if (len == -1)len = v.size();
P res = {0, 0};
chmin(len, v.size());
rep(i, len) {
res.fi += v[i].fi;
res.se += v[i].se;
}
return res;
}
///001
template<class T> T mul(vector<T> &v, int len = -1) {
if (len == -1)len = v.size();
T res = 1;
chmin(len, v.size());
rep(i, len)res *= v[i];
return res;
}
void clear(PQ &q) { while (q.size())q.pop(); }
template<class T> void clear(queue<T> &q) { while (q.size())q.pop(); }
template<class T> T *negarr(int size) {
T *body = (T *) malloc((size * 2 + 1) * sizeof(T));
return body + size;
}
template<class T> T *negarr2(int h, int w) {
double **dummy1 = new double *[2 * h + 1];
double *dummy2 = new double[(2 * h + 1) * (2 * w + 1)];
dummy1[0] = dummy2 + w;
for (int i = 1; i <= 2 * h + 1; i++) {
dummy1[i] = dummy1[i - 1] + 2 * w + 1;
}
double **a = dummy1 + h;
}
//imo0-indexed
//rui1-indexed
template<class T> vector<T> imo(vector<T> &v) {
vector<T> ret = v;
rep(i, sz(ret) - 1)ret[i + 1] += ret[i];
return ret;
}
template<class T> vector<T> imomi(vector<T> &v) {
vector<T> ret = v;
rep(i, sz(ret) - 1)chmin(ret[i + 1], ret[i]);
return ret;
}
template<class T> struct ruiC {
const vector<T> rui;
ruiC(vector<T> &ru) : rui(ru) {}
T operator()(int l, int r) {
assert(l <= r);
return rui[r] - rui[l];
}
T operator[](int i) {
return rui[i];
}
};
template<class T> struct rruic {
const T *rrui;
rruic(T *ru) : rrui(ru) {}
//n-1-1
T operator()(int l, int r) {
assert(l >= r);
return rrui[r] - rrui[l];
}
T operator[](int i) {
return rrui[i];
}
};
template<class T> vector<T> ruiv(vector<T> &a) {
vector<T> ret(a.size() + 1);
rep(i, a.size())ret[i + 1] = ret[i] + a[i];
return ret;
}
template<class T> ruiC<T> ruic(vector<T> &a) {
vector<T> ret = ruiv(a);
return ruiC<T>(ret);
}
template<class T> vector<T> ruim(vector<T> &a) {
vector<T> res(a.size() + 1, 1);
rep(i, a.size())res[i + 1] = res[i] * a[i];
return res;
}
//template<class T> T *rrui(vector<T> &a) {
// (-1 n-1]
template<class T> rruic<T> rrui(vector<T> &a) {
int len = a.size();
T *body = (T *) malloc((len + 1) * sizeof(T));
T *res = body + 1;
rer(i, len - 1)res[i - 1] = res[i] + a[i];
return rruic<T>(res);
}
//
template<class T> T *rruim(vector<T> &a) {
int len = a.size();
T *body = (T *) malloc((len + 1) * sizeof(T));
T *res = body + 1;
res[len - 1] = 1;
rer(i, len - 1)res[i - 1] = res[i] * a[i];
return res;
}
template<class T, class U> void inc(T &a, U v = 1) { a += v; }
template<class T, class U> void inc(vector<T> &a, U v = 1) { for (auto &u :a)inc(u, v); }
template<class T> void inc(vector<T> &a) { for (auto &u :a)inc(u, 1); }
template<class T, class U> void plus(T &a, U v = 1) { a += v; }
template<class T, class U> void plus(vector<T> &a, U v = 1) { for (auto &u :a)inc(u, v); }
template<class T> void plus(vector<T> &a) { for (auto &u :a)inc(u, 1); }
template<class T, class U> void dec(T &a, U v = 1) { a -= v; }
template<class T, class U> void dec(vector<T> &a, U v = 1) { for (auto &u :a)dec(u, v); }
template<class T> void dec(vector<T> &a) { for (auto &u :a)dec(u, 1); }
template<class T, class U> void minu(T &a, U v = 1) { a -= v; }
template<class T, class U> void minu(vector<T> &a, U v = 1) { for (auto &u :a)dec(u, v); }
template<class T> void minu(vector<T> &a) { for (auto &u :a)dec(u, 1); }
inline bool inside(int h, int w, int H, int W) { return h >= 0 && w >= 0 && h < H && w < W; }
inline bool inside(int v, int l, int r) { return l <= v && v < r; }
#define ins inside
ll u(ll a) { return a < 0 ? 0 : a; }
template<class T> vector<T> u(const vector<T> &a) {
vector<T> ret = a;
fora(v, ret)v = u(v);
return ret;
}
#define MIN(a) numeric_limits<a>::min()
#define MAX(a) numeric_limits<a>::max()
ll goldd(ll left, ll right, function<ll(ll)> calc) {
double GRATIO = 1.6180339887498948482045868343656;
ll lm = left + (ll) ((right - left) / (GRATIO + 1.0));
ll rm = lm + (ll) ((right - lm) / (GRATIO + 1.0));
ll fl = calc(lm);
ll fr = calc(rm);
while (right - left > 10) {
if (fl < fr) {
right = rm;
rm = lm;
fr = fl;
lm = left + (ll) ((right - left) / (GRATIO + 1.0));
fl = calc(lm);
} else {
left = lm;
lm = rm;
fl = fr;
rm = lm + (ll) ((right - lm) / (GRATIO + 1.0));
fr = calc(rm);
}
}
ll minScore = MAX(ll);
ll resIndex = left;
for (ll i = left; i < right + 1; i++) {
ll score = calc(i);
if (minScore > score) {
minScore = score;
resIndex = i;
}
}
return resIndex;
}
ll goldt(ll left, ll right, function<ll(ll)> calc) {
double GRATIO = 1.6180339887498948482045868343656;
ll lm = left + (ll) ((right - left) / (GRATIO + 1.0));
ll rm = lm + (ll) ((right - lm) / (GRATIO + 1.0));
ll fl = calc(lm);
ll fr = calc(rm);
while (right - left > 10) {
if (fl > fr) {
right = rm;
rm = lm;
fr = fl;
lm = left + (ll) ((right - left) / (GRATIO + 1.0));
fl = calc(lm);
} else {
left = lm;
lm = rm;
fl = fr;
rm = lm + (ll) ((right - lm) / (GRATIO + 1.0));
fr = calc(rm);
}
}
if (left > right) {
ll l = left;
left = right;
right = l;
}
ll maxScore = MIN(ll);
ll resIndex = left;
for (ll i = left; i < right + 1; i++) {
ll score = calc(i);
if (maxScore < score) {
maxScore = score;
resIndex = i;
}
}
return resIndex;
}
template<class T> T min(vector<vector<T>> &a) {
T res = MAX(T);
rep(i, a.size())chmin(res, *min_element(all(a[i])));
return res;
}
template<class T> T max(vector<vector<T>> &a) {
T res = MIN(T);
rep(i, a.size())chmax(res, *max_element(all(a[i])));
return res;
}
bool bget(ll m, int keta) { return (m >> keta) & 1; }
int bget(ll m, int keta, int sinsuu) {
m /= (ll) pow(sinsuu, keta);
return m % sinsuu;
}
inline ll bit(int n) { return (1LL << (n)); }
inline ll bit(int n, int sinsuu) { return (ll) pow(sinsuu, n); }
//int bcou(ll m) { return __builtin_popcount(m & 0xFFFFFFFF) + __builtin_popcount(m >> 32); }
#define bcou __builtin_popcountll
//
int lbit(int n) {
return n & -n;
}
//
int hbit(int n) {
n |= (n >> 1);
n |= (n >> 2);
n |= (n >> 4);
n |= (n >> 8);
n |= (n >> 16);
n |= (n >> 32);
return n - (n >> 1);
}
//0
ll nextComb(ll &mask, int n, int r) {
if (!mask)return mask = (1LL << r) - 1;
ll x = mask & -mask; //1
ll y = mask + x; //1
ll res = ((mask & ~y) / x >> 1) | y;
if (bget(res, n))return mask = 0;
else return mask = res;
}
//nrvector
vl bitCombList(int n, int r) {
vl res;
int m = 0;
while (nextComb(m, n, r)) {
res.pb(m);
}
return res;
}
//
int altoiaZ(char c) {
if ('A' <= c && c <= 'Z')return c - 'A';
return c - 'a' + 26;
}
char itoalaZ(int i) {
if (i < 26)return 'A' + i;
return 'a' + i - 26;
}
//aA0
int altoi(char c) {
if ('A' <= c && c <= 'Z')return c - 'A';
return c - 'a';
}
char itoal(int i) {
return 'a' + i;
}
int ctoi(char c) { return c - '0'; }
char itoc(int i) { return i + '0'; }
int vtoi(vi &v) {
int res = 0;
if (sz(v) > 18) {
debugline("vtoi");
deb(sz(v));
ole();
}
rep(i, sz(v)) {
res *= 10;
res += v[i];
}
return res;
}
vi itov(int i) {
vi res;
while (i) {
res.pb(i % 10);
i /= 10;
}
rev(res);
return res;
}
vector<vector<int>> ctoi(vector<vector<char>> s, char c) {
int n = sz(s), m = sz(s[0]);
vector<vector<int>> res(n, vector<int>(m));
rep(i, n)rep(j, m)res[i][j] = s[i][j] == c;
return res;
}
#define UNIQUE(v) v.erase( unique(v.begin(), v.end()), v.end() );
void compress(vi &a) {
vi b;
int len = a.size();
for (int i = 0; i < len; ++i) {
b.push_back(a[i]);
}
sort(b);
UNIQUE(b);
for (int i = 0; i < len; ++i) {
a[i] = lower_bound(all(b), a[i]) - b.begin();
}
}
void compress(int a[], int len) {
vi b;
for (int i = 0; i < len; ++i) {
b.push_back(a[i]);
}
sort(b);
UNIQUE(b);
for (int i = 0; i < len; ++i) {
a[i] = lower_bound(all(b), a[i]) - b.begin();
}
}
//
#define binarySearch(a, v) (binary_search(all(a),v))
#define lowerIndex(a, v) (lower_bound(all(a),v)-a.begin())
#define lowerBound(a, v) (*lower_bound(all(a),v))
#define upperIndex(a, v) (upper_bound(all(a),v)-a.begin())
#define upperBound(a, v) (*upper_bound(all(a),v))
#define ans(a) cout<<a<<endl;continue;
#define poll(a) q.front();q.pop()
#define dpoll(a) q.front();q.pop_front()
#define pollLast(a) q.back();q.pop_back()
#define pollBack(a) q.back();q.pop_back()
template<class T> inline void fin(T s) { cout << s << endl, exit(0); }
//
vp vtop(vi &a, vi &b) {
vp res(sz(a));
rep(i, sz(a))res[i] = mp(a[i], b[i]);
return res;
}
void ptov(vp &p, vi &a, vi &b) {
a.resize(sz(p));
b.resize(sz(p));
rep(i, sz(p))a[i] = p[i].fi, b[i] = p[i].se;
}
template<typename _CharT, typename _Traits, typename _Alloc>
basic_string<_CharT, _Traits, _Alloc>
operator+(const basic_string<_CharT, _Traits, _Alloc> &__lhs, const int __rv) {
basic_string<_CharT, _Traits, _Alloc> __str(__lhs);
__str.append(to_string(__rv));
return __str;
}
template<typename _CharT, typename _Traits, typename _Alloc>
void operator+=(basic_string<_CharT, _Traits, _Alloc> &__lhs, const int __rv) {
__lhs += to_string(__rv);
}
template<typename _CharT, typename _Traits, typename _Alloc>
basic_string<_CharT, _Traits, _Alloc>
operator+(const basic_string<_CharT, _Traits, _Alloc> &__lhs, const signed __rv) {
basic_string<_CharT, _Traits, _Alloc> __str(__lhs);
__str.append(to_string(__rv));
return __str;
}
template<typename _CharT, typename _Traits, typename _Alloc>
void operator+=(basic_string<_CharT, _Traits, _Alloc> &__lhs, const signed __rv) {
__lhs += to_string(__rv);
}
template<class T, class U> void operator+=(queue<T> &a, U v) {
a.push(v);
}
template<class T, class U>
priority_queue<T, vector<T>, greater<T> > &operator+=(priority_queue<T, vector<T>, greater<T> > &a, U v) {
a.push(v);
return a;
}
template<class T, class U> priority_queue<T> &operator+=(priority_queue<T> &a, U v) {
a.push(v);
return a;
}
template<class T, class U> set<T> &operator+=(set<T> &a, U v) {
a.insert(v);
return a;
}
template<class T, class U> set<T, greater<T>> &operator+=(set<T, greater<T>> &a, U v) {
a.insert(v);
return a;
}
template<class T, class U> vector<T> &operator+=(vector<T> &a, U v) {
a.pb(v);
return a;
}
template<class T, class U> vector<T> operator+(const vector <T> &a, U v) {
vector<T> ret = a;
ret += v;
return ret;
}
template<class T, class U> vector<T> operator+(U v, const vector <T> &a) {
vector<T> ret = a;
ret.insert(ret.begin(), v);
return ret;
}
template<class T> vector<T> &operator+=(vector<T> &a, vector <T> &b) {
fora(v, b)a += v;
return a;
}
template<class T, class U> vector<T> &operator+=(vector<T> &a, initializer_list<U> v) {
for (auto &&va :v)a.pb(va);
return a;
}
template<class T> vector<T> &operator-=(vector<T> &a, vector <T> &b) {
if (sz(a) != sz(b)) {
debugline("vector<T> operator-=");
deb(a);
deb(b);
ole();
}
rep(i, sz(a))a[i] -= b[i];
return a;
}
template<class T> vector<T> operator-(vector<T> &a, vector <T> &b) {
if (sz(a) != sz(b)) {
debugline("vector<T> operator-");
deb(a);
deb(b);
ole();
}
vector<T> res(sz(a));
rep(i, sz(a))res[i] = a[i] - b[i];
return res;
}
template<typename T> void remove(vector<T> &v, unsigned int i) { v.erase(v.begin() + i); }
template<typename T> void remove(vector<T> &v, unsigned int s, unsigned int e) {
v.erase(v.begin() + s, v.begin() + e);
}
template<typename T> void removen(vector<T> &v, unsigned int s, unsigned int n) {
v.erase(v.begin() + s, v.begin() + s + n);
}
template<typename T> void erase(vector<T> &v, unsigned int i) { v.erase(v.begin() + i); }
template<typename T> void erase(vector<T> &v, unsigned int s, unsigned int e) {
v.erase(v.begin() + s, v.begin() + e);
}
template<typename T> void erasen(vector<T> &v, unsigned int s, unsigned int n) {
v.erase(v.begin() + s, v.begin() + s + n);
}
template<typename T, typename U> void insert(vector<T> &v, unsigned int i, U t) { v.insert(v.begin() + i, t); }
template<typename T, typename U> void push_front(vector<T> &v, U t) { v.insert(v.begin(), t); }
template<typename T, typename U> void insert(vector<T> &v, unsigned int i, vector<T> list) {
for (auto &&va :list)v.insert(v.begin() + i++, va);
}
template<typename T, typename U> void insert(vector<T> &v, initializer_list<U> list) {
for (auto &&va :list)v.pb(va);
}
template<typename T, typename U> void insert(vector<T> &v, unsigned int i, initializer_list<U> list) {
for (auto &&va :list)v.insert(v.begin() + i++, va);
}
template<typename T> void insert(set<T> &v, vector<T> list) {
for (auto &&va :list)v.insert(va);
}
template<typename T> void insert(set<T> &v, initializer_list<T> list) {
for (auto &&va :list)v.insert(va);
}
vector<string> split(const string a, const char deli) {
string b = a + deli;
int l = 0, r = 0, n = b.size();
vector<string> res;
rep(i, n) {
if (b[i] == deli) {
r = i;
if (l < r)res.push_back(b.substr(l, r - l));
l = i + 1;
}
}
return res;
}
vector<string> split(const string a, const string deli) {
string b = a + deli;
int l = 0, r = 0, n = b.size(), dn = deli.size();
vector<string> res;
rep(i, n) {
if (i + dn <= n && b.substr(i, i + dn) == deli) {
r = i;
if (l < r)res.push_back(b.substr(l, r - l));
i += dn - 1;
l = i + 1;
}
}
return res;
}
void yn(bool a) {
if (a)cout << "yes" << endl;
else cout << "no" << endl;
}
void Yn(bool a) {
if (a)cout << "Yes" << endl;
else cout << "No" << endl;
}
void YN(bool a) {
if (a)cout << "YES" << endl;
else cout << "NO" << endl;
}
void fyn(bool a) {
if (a)cout << "yes" << endl;
else cout << "no" << endl;
exit(0);
}
void fYn(bool a) {
if (a)cout << "Yes" << endl;
else cout << "No" << endl;
exit(0);
}
void fYN(bool a) {
if (a)cout << "YES" << endl;
else cout << "NO" << endl;
exit(0);
}
void Possible(bool a) {
if (a)cout << "Possible" << endl;
else cout << "Impossible" << endl;
exit(0);
}
int n, m, k, d, H, W, x, y, z, q;
int cou;
vi a, b, c;
vvi (s, 0, 0);
vvc (ba, 0, 0);
vp p;
void solve() {
cin >> n;
str s = sin();
rep(p, 1, n) {
rep(i, n) {
int r = i + p * 2;
if (r > n)brk;
if (s[i] == 'U' && s[i + p] == 'M' && s[r] == 'G')cou++;
}
}
cout << cou << endl;
}
int my(int n, vi a) {
return 0;
}
int sister(int n, vi a) {
return 0;
}
signed main() {
solve();
#define _arg n,a
//cin>>n;
//na(a,n);
//my(_arg);
//cout << my(_arg) << endl;
#ifdef _DEBUG
bool bad = 0;
for (int i = 0, ok = 1; i < k5 && ok; i++) {
int n = rand(1, 3);
vi a = ranv(m, 1, 10);
int myres = my(_arg);
int res = sister(_arg);
ok = myres == res;
if (!ok) {
cout << n << endl;
cout << a << endl;
cout << " : " << res << endl;
cout << " : " << myres << endl;
bad = 1;
break;
}
}
#endif
return 0;
};
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
0