結果
| 問題 | No.1561 connect x connect |
| ユーザー |
 chocorusk
|
| 提出日時 | 2021-06-26 00:20:24 |
| 言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
| 結果 |
AC
|
| 実行時間 | 499 ms / 2,000 ms |
| コード長 | 63,539 bytes |
| コンパイル時間 | 15,011 ms |
| コンパイル使用メモリ | 804,880 KB |
| 実行使用メモリ | 4,380 KB |
| 最終ジャッジ日時 | 2023-09-07 15:12:02 |
| 合計ジャッジ時間 | 18,901 ms |
|
ジャッジサーバーID （参考情報） |
judge15 / judge11 |
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テストケース
テストケース表示| 入力 | 結果 | 実行時間 実行使用メモリ |
|---|---|---|
| testcase_00 | AC | 2 ms
4,356 KB |
| testcase_01 | AC | 1 ms
4,356 KB |
| testcase_02 | AC | 4 ms
4,356 KB |
| testcase_03 | AC | 1 ms
4,356 KB |
| testcase_04 | AC | 2 ms
4,356 KB |
| testcase_05 | AC | 2 ms
4,360 KB |
| testcase_06 | AC | 1 ms
4,352 KB |
| testcase_07 | AC | 2 ms
4,356 KB |
| testcase_08 | AC | 1 ms
4,352 KB |
| testcase_09 | AC | 2 ms
4,356 KB |
| testcase_10 | AC | 1 ms
4,356 KB |
| testcase_11 | AC | 2 ms
4,356 KB |
| testcase_12 | AC | 2 ms
4,356 KB |
| testcase_13 | AC | 3 ms
4,356 KB |
| testcase_14 | AC | 9 ms
4,352 KB |
| testcase_15 | AC | 12 ms
4,356 KB |
| testcase_16 | AC | 14 ms
4,352 KB |
| testcase_17 | AC | 2 ms
4,356 KB |
| testcase_18 | AC | 2 ms
4,356 KB |
| testcase_19 | AC | 74 ms
4,352 KB |
| testcase_20 | AC | 4 ms
4,352 KB |
| testcase_21 | AC | 2 ms
4,356 KB |
| testcase_22 | AC | 4 ms
4,356 KB |
| testcase_23 | AC | 1 ms
4,380 KB |
| testcase_24 | AC | 74 ms
4,356 KB |
| testcase_25 | AC | 1 ms
4,356 KB |
| testcase_26 | AC | 498 ms
4,352 KB |
| testcase_27 | AC | 496 ms
4,356 KB |
| testcase_28 | AC | 483 ms
4,352 KB |
| testcase_29 | AC | 499 ms
4,356 KB |
| testcase_30 | AC | 489 ms
4,352 KB |
| testcase_31 | AC | 2 ms
4,360 KB |
| testcase_32 | AC | 3 ms
4,356 KB |
| testcase_33 | AC | 12 ms
4,352 KB |
| testcase_34 | AC | 76 ms
4,352 KB |
| testcase_35 | AC | 10 ms
4,352 KB |
| testcase_36 | AC | 83 ms
4,356 KB |
| testcase_37 | AC | 487 ms
4,360 KB |
ソースコード
#include <cstdio>
#include <cstring>
#include <iostream>
#include <string>
#include <cmath>
#include <bitset>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <algorithm>
#include <complex>
#include <unordered_map>
#include <unordered_set>
#include <random>
#include <cassert>
#include <fstream>
#include <utility>
#include <functional>
#include <time.h>
#include <stack>
#include <array>
#include <list>
#include <atcoder/all>
using namespace std;
#pragma region Math Formal Power Series
enum Mode {
FAST = 1,
NAIVE = -1,
};
template <class T, Mode mode = FAST>
struct FormalPowerSeries : std::vector<T> {
using std::vector<T>::vector;
using std::vector<T>::size;
using std::vector<T>::resize;
using std::vector<T>::begin;
using std::vector<T>::insert;
using std::vector<T>::erase;
using F = FormalPowerSeries;
using S = std::vector<std::pair<int, T>>;
F &operator+=(const F &g) {
for(int i = 0; i < int(std::min((*this).size(), g.size())); i++) (*this)[i] += g[i];
return *this;
}
F &operator+=(const T &t) {
assert(int((*this).size()));
(*this)[0] += t;
return *this;
}
F &operator-=(const F &g) {
for(int i = 0; i < int(std::min((*this).size(), g.size())); i++) (*this)[i] -= g[i];
return *this;
}
F &operator-=(const T &t) {
assert(int((*this).size()));
(*this)[0] -= t;
return *this;
}
F &operator*=(const T &t) {
for(int i = 0; i < int((*this).size()); ++i) (*this)[i] *= t;
return *this;
}
F &operator/=(const T &t) {
T div = t.inv();
for(int i = 0; i < int((*this).size()); ++i) (*this)[i] *= div;
return *this;
}
F &operator>>=(const int sz) {
assert(sz >= 0);
int n = (*this).size();
(*this).erase((*this).begin(), (*this).begin() + std::min(sz, n));
(*this).resize(n);
return *this;
}
F &operator<<=(const int sz) {
assert(sz >= 0);
int n = (*this).size();
(*this).insert((*this).begin(), sz, T(0));
(*this).resize(n);
return *this;
}
F &operator%=(const F &g) { return *this -= *this / g * g; }
F &operator=(const std::vector<T> &v) {
int n = (*this).size();
for(int i = 0; i < n; ++i) (*this)[i] = v[i];
return *this;
}
F operator-() const {
F ret = *this;
return ret * -1;
}
F &operator*=(const F &g) {
if(mode == FAST) {
int n = (*this).size();
auto tmp = atcoder::convolution(*this, g);
for(int i = 0; i < n; ++i) (*this)[i] = tmp[i];
return *this;
} else {
int n = (*this).size(), m = g.size();
for(int i = n - 1; i >= 0; --i) {
(*this)[i] *= g[0];
for(int j = 1; j < std::min(i + 1, m); j++)
(*this)[i] += (*this)[i - j] * g[j];
}
return *this;
}
}
F &operator/=(const F &g) {
if((*this).size() < g.size()) {
(*this).assign((*this).size(), T(0));
return *this;
}
if(mode == FAST) {
int old = (*this).size();
int n = (*this).size() - g.size() + 1;
*this = ((*this).rev().pre(n) * g.rev().inv(n));
(*this).rev_inplace();
(*this).resize(old);
return *this;
} else {
assert(g[0] != T(0));
T ig0 = g[0].inv();
int n = (*this).size(), m = g.size();
for(int i = 0; i < n; ++i) {
for(int j = 1; j < std::min(i + 1, m); ++j)
(*this)[i] -= (*this)[i - j] * g[j];
(*this)[i] *= ig0;
}
return *this;
}
}
F &operator*=(S g) {
int n = (*this).size();
auto [d, c] = g.front();
if(!d)
g.erase(g.begin());
else
c = 0;
for(int i = n - 1; i >= 0; --i) {
(*this)[i] *= c;
for(auto &[j, b] : g) {
if(j > i) break;
(*this)[i] += (*this)[i - j] * b;
}
}
return *this;
}
F &operator/=(S g) {
int n = (*this).size();
auto [d, c] = g.front();
assert(!d and c != 0);
T ic = c.inv();
g.erase(g.begin());
for(int i = 0; i < n; ++i) {
for(auto &[j, b] : g) {
if(j > i) break;
(*this)[i] -= (*this)[i - j] * b;
}
(*this)[i] *= ic;
}
return *this;
}
F operator+(const F &g) const { return F(*this) += g; }
F operator+(const T &t) const { return F(*this) += t; }
F operator-(const F &g) const { return F(*this) -= g; }
F operator-(const T &t) const { return F(*this) -= t; }
F operator*(const F &g) const { return F(*this) *= g; }
F operator*(const T &t) const { return F(*this) *= t; }
F operator/(const F &g) const { return F(*this) /= g; }
F operator/(const T &t) const { return F(*this) /= t; }
F operator%(const F &g) const { return F(*this) %= g; }
F operator*=(const S &g) const { return F(*this) *= g; }
F operator/=(const S &g) const { return F(*this) /= g; }
F pre(int d) const { return F((*this).begin(), (*this).begin() + std::min((int)(*this).size(), d)); }
F &shrink() {
while(!(*this).empty() and (*this).back() == T(0)) (*this).pop_back();
return *this;
}
F &rev_inplace() {
reverse((*this).begin(), (*this).end());
return *this;
}
F rev() const { return F(*this).rev_inplace(); }
// *=(1 + cz^d)
F &multiply(const int d, const T c) {
int n = (*this).size();
if(c == T(1))
for(int i = n - d - 1; i >= 0; --i)
(*this)[i + d] += (*this)[i];
else if(c == T(-1))
for(int i = n - d - 1; i >= 0; --i)
(*this)[i + d] -= (*this)[i];
else
for(int i = n - d - 1; i >= 0; --i)
(*this)[i + d] += (*this)[i] * c;
return *this;
}
// /=(1 + cz^d)
F ÷(const int d, const T c) {
int n = (*this).size();
if(c == T(1))
for(int i = 0; i < n - d; ++i) (*this)[i + d] -= (*this)[i];
else if(c == T(-1))
for(int i = 0; i < n - d; ++i) (*this)[i + d] += (*this)[i];
else
for(int i = 0; i < n - d; ++i) (*this)[i + d] -= (*this)[i] * c;
return *this;
}
//Ο(N)
T eval(const T &t) const {
int n = (*this).size();
T res = 0, tmp = 1;
for(int i = 0; i < n; ++i) res += (*this)[i] * tmp, tmp *= t;
return res;
}
F inv(int deg = -1) const {
int n = (*this).size();
assert(mode == FAST and n and (*this)[0] != 0);
if(deg == -1) deg = n;
assert(deg > 0);
F res{(*this)[0].inv()};
while(int(res.size()) < deg) {
int m = res.size();
F f((*this).begin(), (*this).begin() + std::min(n, m * 2)), r(res);
f.resize(m * 2), atcoder::internal::butterfly(f);
r.resize(m * 2), atcoder::internal::butterfly(r);
for(int i = 0; i < m * 2; ++i) f[i] *= r[i];
atcoder::internal::butterfly_inv(f);
f.erase(f.begin(), f.begin() + m);
f.resize(m * 2), atcoder::internal::butterfly(f);
for(int i = 0; i < m * 2; ++i) f[i] *= r[i];
atcoder::internal::butterfly_inv(f);
T iz = T(m * 2).inv();
iz *= -iz;
for(int i = 0; i < m; ++i) f[i] *= iz;
res.insert(res.end(), f.begin(), f.begin() + m);
}
res.resize(deg);
return res;
}
//Ο(N)
F &diff_inplace() {
int n = (*this).size();
for(int i = 1; i < n; ++i) (*this)[i - 1] = (*this)[i] * i;
(*this)[n - 1] = 0;
return *this;
}
F diff() const { F(*this).diff_inplace(); }
//Ο(N)
F &integral_inplace() {
int n = (*this).size(), mod = T::mod();
std::vector<T> inv(n);
{
inv[1] = 1;
for(int i = 2; i < n; ++i)
inv[i] = T(mod) - inv[mod % i] * (mod / i);
}
for(int i = n - 2; i >= 0; --i) (*this)[i + 1] = (*this)[i] * inv[i + 1];
(*this)[0] = 0;
return *this;
}
F integral() const { return F(*this).integral_inplace(); }
//Ο(NlogN)
F &log_inplace() {
int n = (*this).size();
assert(n and (*this)[0] == 1);
F f_inv = (*this).inv();
(*this).diff_inplace();
(*this) *= f_inv;
(*this).integral_inplace();
return *this;
}
F log() const { return F(*this).log_inplace(); }
//Ο(NlogN)
F &deriv_inplace() {
int n = (*this).size();
assert(n);
for(int i = 2; i < n; ++i) (*this)[i] *= i;
(*this).erase((*this).begin());
(*this).push_back(0);
return *this;
}
F deriv() const { return F(*this).deriv_inplace(); }
//Ο(NlogN)
F &exp_inplace() {
int n = (*this).size();
assert(n and (*this)[0] == 0);
F g{1};
(*this)[0] = 1;
F h_drv((*this).deriv());
for(int m = 1; m < n; m *= 2) {
F f((*this).begin(), (*this).begin() + m);
f.resize(2 * m), atcoder::internal::butterfly(f);
auto mult_f = [&](F &p) {
p.resize(2 * m);
atcoder::internal::butterfly(p);
for(int i = 0; i < 2 * m; ++i) p[i] *= f[i];
atcoder::internal::butterfly_inv(p);
p /= 2 * m;
};
if(m > 1) {
F g_(g);
g_.resize(2 * m), atcoder::internal::butterfly(g_);
for(int i = 0; i < 2 * m; ++i) g_[i] *= g_[i] * f[i];
atcoder::internal::butterfly_inv(g_);
T iz = T(-2 * m).inv();
g_ *= iz;
g.insert(g.end(), g_.begin() + m / 2, g_.begin() + m);
}
F t((*this).begin(), (*this).begin() + m);
t.deriv_inplace();
{
F r{h_drv.begin(), h_drv.begin() + m - 1};
mult_f(r);
for(int i = 0; i < m; ++i) t[i] -= r[i] + r[m + i];
}
t.insert(t.begin(), t.back());
t.pop_back();
t *= g;
F v((*this).begin() + m, (*this).begin() + std::min(n, 2 * m));
v.resize(m);
t.insert(t.begin(), m - 1, 0);
t.push_back(0);
t.integral_inplace();
for(int i = 0; i < m; ++i) v[i] -= t[m + i];
mult_f(v);
for(int i = 0; i < std::min(n - m, m); ++i)
(*this)[m + i] = v[i];
}
return *this;
}
F exp() const { return F(*this).exp_inplace(); }
//Ο(NlogN)
F &pow_inplace(long long k) {
int n = (*this).size(), l = 0;
assert(k >= 0);
if(!k) {
for(int i = 0; i < n; ++i) (*this)[i] = !i;
return *this;
}
while(l < n and (*this)[l] == 0) ++l;
if(l > (n - 1) / k or l == n) return *this = F(n);
T c = (*this)[l];
(*this).erase((*this).begin(), (*this).begin() + l);
(*this) /= c;
(*this).log_inplace();
(*this).resize(n - l * k);
(*this) *= k;
(*this).exp_inplace();
(*this) *= c.pow(k);
(*this).insert((*this).begin(), l * k, 0);
return *this;
}
F pow(const long long k) const { return F(*this).pow_inplace(k); }
//Ο(NlogN)
F sqrt(int deg = -1) const {
auto SQRT = [&](T t) {
int mod = T::mod();
if(t == 0 or t == 1) return t;
int v = (mod - 1) / 2;
if(t.pow(v) != 1) return T(-1);
int q = mod - 1, m = 0;
while(~q & 1) q >>= 1, m++;
std::mt19937 mt;
T z = mt();
while(z.pow(v) != mod - 1) z = mt();
T c = z.pow(q), u = t.pow(q), r = t.pow((q + 1) / 2);
for(; m > 1; m--) {
T tmp = u.pow(1 << (m - 2));
if(tmp != 1) r = r * c, u = u * c * c;
c = c * c;
}
return T(std::min(r.val(), mod - r.val()));
};
int n = (*this).size();
if(deg == -1) deg = n;
if((*this)[0] == 0) {
for(int i = 1; i < n; i++) {
if((*this)[i] != 0) {
if(i & 1) return F(0);
if(deg - i / 2 <= 0) break;
auto ret = (*this);
ret >>= i;
ret.resize(n - i);
ret = ret.sqrt(deg - i / 2);
if(ret.empty()) return F(0);
ret <<= (i / 2);
ret.resize(deg);
return ret;
}
}
return F(deg);
}
auto sqr = SQRT((*this)[0]);
if(sqr * sqr != (*this)[0]) return F(0);
F ret{sqr};
T ti = T(1) / T(2);
for(int i = 1; i < deg; i <<= 1) {
auto u = (*this);
u.resize(i << 1);
ret = (ret.inv(i << 1) * u + ret) * ti;
}
ret.resize(deg);
return ret;
}
void sparse_pow(const int n, const int d, const T c, const int k);
void sparse_pow_inv(const int n, const int d, const T c, const int k);
void stirling_first(int n);
void stirling_second(int n);
std::vector<T> multipoint_evaluation(const std::vector<T> &p);
};
#pragma endregion
template <class F>
F Berlekamp_Massey(const F &a) {
using T = typename F::value_type;
int n = a.size();
F c{-1}, c2{0};
T r2 = 1;
int i2 = -1;
for(int i = 0; i < n; i++) {
T r = 0;
int d = c.size();
for(int j = 0; j < d; j++) r += c[j] * a[i - j];
if(r == 0) continue;
T coef = -r / r2;
int d2 = c2.size();
if(d - i >= d2 - i2) {
for(int j = 0; j < d2; j++)
c[j + i - i2] += c2[j] * coef;
} else {
F tmp(c);
c.resize(d2 + i - i2);
for(int j = 0; j < d2; j++) c[j + i - i2] += c2[j] * coef;
c2 = std::move(tmp);
i2 = i, r2 = r;
}
}
return {c.begin() + 1, c.end()};
}
//return generating function of a, s.t. F(x) = P(x) / Q(x)
template <class F>
std::pair<F, F> find_generating_function(F a) {
auto q = Berlekamp_Massey(a);
int d = q.size();
a.resize(d);
q.insert(q.begin(), 1);
for(int i = 1; i < (int)q.size(); i++) q[i] *= -1;
a *= q;
return {a, q};
}
#pragma region Math Compute Kth term
//return [x^k] p(x) / q(x)
template <class T, Mode mode>
T compute_Kthterm(FormalPowerSeries<T, mode> p, FormalPowerSeries<T, mode> q, long long k) {
int d = q.size();
assert(q[0] == 1 and p.size() + 1 <= d);
while(k) {
auto q_minus = q;
for(int i = 1; i < d; i += 2)
q_minus[i] *= -1;
p.resize(2 * d);
q.resize(2 * d);
p *= q_minus;
q *= q_minus;
for(int i = 0; i < d - 1; i++)
p[i] = p[(i << 1) | (k & 1)];
for(int i = 0; i < d; i++)
q[i] = q[i << 1];
p.resize(d - 1);
q.resize(d);
k >>= 1;
}
return p[0];
}
template <class T, Mode mode>
T compute_Kthterm(std::pair<FormalPowerSeries<T, mode>, FormalPowerSeries<T, mode>> f, long long k) { return compute_Kthterm(f.first, f.second, k); }
#pragma endregion
using mint = atcoder::modint1000000007;
using fps = FormalPowerSeries<mint, NAIVE>;
long long n;
int main() {
int n; cin>>n;
using ll=long long;
ll m; cin>>m;
if(n==1){
cout<<(mint(m)*mint(m+1)/mint(2)).val()<<endl;
return 0;
}else if(n==2){
fps a{3,13,40,108,275,681,1664,4040,9779,23637,57096,137876,332899,803729,1940416,4684624,11309731,27304157,65918120,159140476,384199155,927538873,239276978,406092917,51462904,509018828,69500660,648020259,365541286,379102943};
printf("%d\n", compute_Kthterm(find_generating_function(a), m - 1).val());
}else if(n==3){
fps a{6,40,218,1126,5726,28992,146642,741556,3749816,18961450,95880894,484833212,451616850,396892232,686360042,981035162,852304262,13310737,963770471,287207712,160261393,773383718,96956388,687167308,497530903,444375838,604326428,109192343,567326764,44956786};
printf("%d\n", compute_Kthterm(find_generating_function(a), m - 1).val());
}else if(n==4){
fps a{10,108,1126,11506,116166,1168586,11749134,118127408,187692415,941503421,64334502,171422003,349404639,414370691,229496053,914944379,534647146,212952522,902520681,724503478,619605102,166273790,619390876,836310385,686953731,577520663,729784801,284152723,990192910,985602944,184628568,143013864,120357458,135871979,693625981,923420525,935325709,232157437,179845336,642659777,928044617,599227641,429003717,808616660,796217953,104253038,790833226,173559765,354895468,283511888};
// auto v=find_generating_function(a);
// for(auto x:v.second) cout<<x.val()<<",";
// cout<<endl;
// cout<<a.size()<<" "<<v.second.size()<<endl;
printf("%d\n", compute_Kthterm(find_generating_function(a), m - 1).val());
}else if(n==5){
fps a{15,275,5726,116166,2301877,45280509,889477656,470102989,131617800,543346538,672693081,528691884,433100319,259856352,631703746,121492784,65000963,67868821,431503520,556143263,898859209,822402657,746831347,942022314,42461886,245383965,159194955,442319965,719053964,735342087,986228635,385914410,746460380,499191314,294132890,429534325,53306515,69797919,520148741,67524590,131525006,212068789,48189163,744481802,784588217,472300215,20257573,506104402,129522484,887689193,43853833,543027098,470146768,95649760,578040016,125364572,32787914,139313990,713541877,395048004,58211160,741163082,279667841,863539083,628324240,632065512,233414550,425723447,668541542,395252599,948108328,415936460,936971286,807826611,208563368,385680591,915191638,982414083,119125504,245116288,652724547,553342192,353630600,164609785,388450582,428700037,12346034,723785521,759402482,991725165,966973769,273572834,930570812,280051753,519978288,374543182,92200418,226676644,296219848,527096603};
// auto v=find_generating_function(a);
// for(auto x:v.second) cout<<x.val()<<",";
// cout<<endl;
// cout<<a.size()<<" "<<v.second.size()<<endl;
printf("%d\n", compute_Kthterm(find_generating_function(a), m - 1).val());
}else if(n==6){
fps a{21,681,28992,1168586,45280509,732082734,37461992,885687205,403247903,630794366,96311199,188560385,132214957,81864959,656832813,129969437,337127917,885747691,994734031,901081506,113735510,330166803,692897482,221245902,823578678,149151767,513212823,565413378,343413792,552163984,401017125,775469314,768705741,822998669,524634565,141276343,644398112,617812249,791340223,983870515,203398182,625614815,683890375,368195928,142285464,986226417,160965035,405204827,206471233,652493150,587867820,808610901,707659600,22802536,445444835,187616183,160982744,457176050,436730256,169883893,240716120,405440669,340484060,656210817,36771327,96126498,306426249,814430155,444930212,988328253,540530995,382743352,520556011,247236452,220449493,166029981,836928892,713012422,954252270,210134677,648105608,574260821,257748962,442563484,914128913,335893401,10612419,644215155,701674251,791425433,275022106,639393769,990275298,335101602,666947295,13086669,924423722,440358685,58917454,854634653,222563675,986452944,446560406,446339799,591900594,128960647,452436634,623814114,525257515,200495503,761757851,718952409,535847882,645061699,693963653,46678719,466133474,594295562,399559391,11097962,461778954,483386287,217580794,516089910,909297529,427249009,903830872,948864754,417535749,861690114,993338477,163694488,704688997,410415745,819049617,768562308,219587990,988235140,638477009,906083355,986424230,21490100,639637730,572881707,766595872,767939846,800732317,706345604,549051521,625193562,16831162,641408131,715352261,252575415,849525236,451254833,154836312,875072124,857138289,85504824,43664162,328113172,469628778,738455978,301383170,227452743,643952736,421179753,838409907,630538122,568667001,265423706,249151164,60716612,217355205,116129713,63635092,905389532,184685401,515736984,227392078,31713055,76862194,112672382,534885464,262104899,168571936,67257989,313819794,905116518,665071482,636607859,194818405,121405681,853051068,300594872,952805075,156961259,590791197,898252277};
// auto v=find_generating_function(a);
// for(auto x:v.second) cout<<x.val()<<",";
// cout<<endl;
// cout<<a.size()<<" "<<v.second.size()<<endl;
printf("%d\n", compute_Kthterm(find_generating_function(a), m - 1).val());
}else if(n==7){
fps a{28,1664,146642,11749134,889477656,37461992,949940562,34890374,408395779,465431123,169444072,476095424,659247954,873440607,926228358,615656154,946323264,52968124,753942504,466886220,131497623,574943442,651491966,558045773,251030380,281770571,626734327,538734009,338782739,544266404,882070771,638524752,866251039,377115307,677270990,923683803,407681394,135644897,799433050,734586418,252356851,562319011,202766611,459305661,237631148,937873188,999735041,471421437,196454674,548587822,155433694,513218158,425727801,201766011,618282733,853358524,794224019,317787454,420202005,208101995,561508157,165138107,680690785,440574802,642204069,1519935,740668820,993620892,358321040,609591537,544950607,452208170,885834624,821590676,398458087,516061104,713420418,988022777,345184826,285034175,821685364,13669476,704448103,129864472,272789356,791468167,22642555,191074948,725893030,621310461,91319075,716141215,100651620,124026881,366140815,685675711,544588613,31892809,733368799,814661720,416829950,25354705,920576064,404858750,224503153,408647840,32879424,449601451,954308700,384324116,674296838,792515237,188224955,323348585,972509240,558237931,478379644,769454589,5532215,665030504,378063244,50177022,152536855,592606999,936002695,561844587,98320627,393845743,234288387,975460550,94761064,230083310,437478027,493404365,809166706,952865395,30537948,269093029,454344596,528546169,743583991,647074729,593751773,863574928,753557944,354148307,464934709,275033859,450276861,375178856,24286587,880771043,120621725,710396662,135056587,742687865,845401042,8181486,277891374,585736419,570298110,955283694,601817563,141857657,613931527,134904117,127307580,914760872,56527073,515151064,85256390,867641311,644658123,516456196,546485053,695768127,950249035,737354235,328196921,664437558,654797167,540686071,250077160,487287552,591837921,979485087,490297242,633678446,990298548,379642970,702481128,584942893,361720238,825880866,772590735,172182904,754431546,299502652,249050691,335001904,230296477,624204288,692367468,559310443,838878897,487986149,566227276,518043209,592538136,138670606,504405049,252553466,871876658,899807947,483430873,691627537,222857969,795092244,368293695,768052890,697322358,573816332,825591677,652492801,526261993,975704775,677628081,116620383,439967590,362128951,672319242,574102271,350904081,199464684,849463038,886655361,223485420,319695722,767450461,688429206,598751129,225406154,353550552,98188261,962586132,351427959,41167573,126283438,801928140,530774617,44264407,602460015,61008882,302058086,906154632,231505141,652491961,47839345,55293956,145231825,307920923,408202725,510473597,75219688,157343985,917480789,103605310,842950390,101027707,28793070,717261125,758732082,158282973,502041348,88400441,587778289,226310004,574669991,764559581,756363639,614962461,790643571,149324328,145554685,437398154,438739802,922467738,388741006,833892011,180024031,324080539,286487275,308749486,290106846,520867996,591917943,627868971,364622578,921885725,965742313,948877022,704039082,956113451,678857977,321401847,167938672,393856197,808025503,320963438,706550784,844136492,669955528,297253668,394528415,834378234,984963756,943035612,889279746,691625657,151511814,633374998,11156661,177860660,526965344,720117942,677315004,43154458,29163605,704506502,683525032,315857847,191280597,827302311,699421298,212010427,794556814,913280489,139164873,268649425,876508475,417530149,801828700,557926859,663339429,431411356,247878361,567938231,396918035,536975307,23869544,213323065,829981561,293484929,745338799,612848888,700199508,304928068,637237106,510637206,575567485,286763332,606725159,18008540,758299731,373138922,527449398,277338660,951314381,136928877,517354155,958264645,476381296,517661699,418951513,594925089,766767569,632423321,158924453,216993745,87677436,460735106,213378655,75798721,810498703,498131595,804233141,46616599,126236000,75726097,12494566,137140335,462013348,514605591,36371762,900304397,353370158,159178736,385565940,202256034,749707904,585244419,368607383,161372043,902321328,332777236,497271620,892689964,417308139,992400013,112355400,862835116,840275498,926482020,145476286,503687099,819367240,94465356,29534741,404125775,994606265,702779052,727169224,488931844,908250586,965893044,454596515,504943446,536580797,887270975,336238694,42825016,61715600,721194359,926269327,455233124,176379457,401022098,997694805,736660305,28764247,43601269,915483947,251386637,547146660,209214260,767872658,198009594,304348327,535645794,590354800,641872539,676928196,892980837,934433856,794932752,437963681,60438779,881980372,633986342,717718530,792975552,84059053,729878948,704864625,410844747,108887832,457337849,414985017,131963858,741566198,699925321,907788357,534135778,84813473,574894621,637795121,591882868,317003937,959093967,509688013,976315900,181502120,69921532,496704607,258795001,74876814,934998100,851342700,873185906,86019015,341788146,252606682,176203832,796840690,743454462,952296567,275524869,138772297,457478921,534369146};
// auto v=find_generating_function(a);
// for(auto x:v.second) cout<<x.val()<<",";
// cout<<endl;
// cout<<a.size()<<" "<<v.second.size()<<endl;
// cout<<a[m-1].val()<<endl;
printf("%d\n", compute_Kthterm(find_generating_function(a), m - 1).val());
}else if(n==8){
fps a{36,4040,741556,118127408,470102989,885687205,34890374,247777016,233426110,328755371,705627253,787442872,382905968,14599213,54410761,601006292,612557411,15449456,990194963,286282085,699722725,781620769,840139026,489073872,334785849,435236311,109774734,741619354,198733961,979223831,316303898,39151097,758722723,846456337,302710767,751509519,910422866,269441528,739223079,47041872,144990978,835832181,94144832,432122371,718847361,143249505,202420879,524474077,175432350,259981775,949834434,650788361,314338901,308488393,925015945,735629952,55340122,870087004,914406437,652461932,824517283,13384791,734924498,195917202,347913012,345009223,72962601,728865665,529666843,443583543,797807890,499559112,582526183,750449603,794171249,339435367,795879914,610395113,651525515,665256279,771083632,124044838,103256298,555278857,168723782,37135886,926137424,193565944,44104251,848927128,311714530,740363205,103826476,426742610,675142274,731839743,444416323,663478468,724122696,351972777,394976529,438819547,910482232,104665901,409225876,167205682,514913255,760105145,29299318,710711305,114816263,854763814,393789740,110116602,971095517,965304627,656067527,345333181,54369787,393350947,645767328,278297447,584309442,643959646,760481447,306899117,556007296,90782544,501999191,487093902,851119019,214855164,290938704,483935411,931413698,87706720,543982301,557974404,993894344,617966931,450284946,530064541,635450110,955879320,855098870,534537883,745899211,102957101,662330955,760521286,880202513,410332359,896841550,21942388,327590993,607470931,510274101,755158989,271684724,681115728,979634385,116288824,441075062,869557219,498624604,668265455,563569496,411144207,372553915,26571455,299681786,483501145,332251237,514296631,262088005,767350800,242709545,312245270,625558060,630739736,166453361,987400268,534085288,177342293,635886216,360697926,830064107,142999667,796390630,541632626,524331979,832128250,56784302,599770934,420185002,36118708,960687380,886180310,494123322,256629996,167297430,422622751,387880447,805197257,990906673,197392117,409215677,751867399,114891717,20016317,539423303,506437722,420323843,17970683,326175155,607163024,810675077,843118080,586603097,332437402,683685949,604167445,591515392,281318475,78155302,77262870,295568742,84378564,642943804,12418388,229594263,734305604,17384828,186823879,593406287,961690928,25278271,599757507,378599083,885999372,931931154,847818732,310703306,179718037,657210250,145528035,460498835,941558183,335135033,141616629,159440568,260876848,890714211,188331960,684788951,962770200,647749365,692000110,84789890,537064226,34450693,41361159,550194872,245249510,900342927,708273455,11582750,128969774,512056024,55621840,349004103,637116327,221258619,579454604,113893155,576214565,70474670,23918406,481813326,650352628,246808992,284149773,322921320,932867440,994253316,940618752,728504628,428989277,122474883,119546567,24132989,106306057,431011676,611024275,216092722,58878209,120907053,721629563,912245906,362994491,77928369,598179975,862251408,302060801,740845851,459478020,470575531,272055896,271404799,997912850,546477555,102801686,821058456,253389281,766070116,630671870,387593406,363890599,503970373,198459011,993364983,210948547,542855600,819226189,105570790,913838629,104902492,762607730,954174415,72362182,262189042,660554698,644882931,306650491,22189921,453123535,325669077,343206525,974951457,351413353,739439727,691749300,370158155,944047087,188614448,382554560,385741341,62378861,740868823,256532720,721260792,546722312,476298563,606762613,98776597,898445055,605244416,333859175,433695415,401161555,572855900,243667256,85343275,675159111,922771403,996753883,954048792,469148681,19943310,296231983,99393046,204271242,312577414,956614050,159362747,723539464,111719269,894138283,588450712,602782641,981925081,900433722,180543976,267328359,522848269,4196876,67000221,107779275,321728788,528597009,269434052,964941752,949825535,975030569,458728260,549511657,418171228,245570031,648210002,972434486,581872841,635344873,319802131,678265430,806155028,954458488,526854316,847377932,635338258,992797405,996032138,354562941,45336905,183006406,369367986,247817599,491651791,494803388,962480389,263666033,589248787,333002562,984917436,533517314,834849849,760791455,813814450,264438765,491534108,918145304,179243081,160538845,82373668,881806227,278695929,385349193,933393279,582444056,773641996,840937519,96345613,817752724,256578507,578658131,888553230,520544388,456331128,516837372,204008969,759828334,835082256,253914433,679107129,399776524,263641485,965389468,273920466,217978642,525012339,943300399,526528430,502684771,227319750,184383544,997961184,602742228,532755275,833719430,885093194,163222309,767604092,441111497,336002325,145020301,447897866,342728410,567522451,559761513,223634210,733274354,395895536,441758545,522228315,742539357,836415813,737295437,84803431,254857484,689895714,104233342,56504993,929273450,508576898,983431326,316933462,434800355,77235158,345405176,120253752,548205524,600098257,35022114,875707259,680477575,229617110,897981711,95828344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// auto v=find_generating_function(a);
// for(auto x:v.second) cout<<x.val()<<",";
// cout<<endl;
// cout<<a.size()<<" "<<v.second.size()<<endl;
printf("%d\n", compute_Kthterm(find_generating_function(a), m - 1).val());
}else{
fps 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// auto v=find_generating_function(a);
// for(auto x:v.second) cout<<x.val()<<",";
// cout<<endl;
// cout<<a.size()<<" "<<v.second.size()<<endl;
printf("%d\n", compute_Kthterm(find_generating_function(a), m - 1).val());
}
return 0;
}