#line 1 "1986.cpp" // #pragma GCC target("avx2,avx512f,avx512vl,avx512bw,avx512dq,avx512cd,avx512vbmi,avx512vbmi2,avx512vpopcntdq,avx512bitalg,bmi,bmi2,lzcnt,popcnt") // #pragma GCC optimize("Ofast") #line 2 "/home/sigma/comp/library/template.hpp" #include <bits/stdc++.h> using namespace std; using ll = long long; using uint = unsigned int; using ull = unsigned long long; #define rep(i,n) for(int i=0;i<int(n);i++) #define rep1(i,n) for(int i=1;i<=int(n);i++) #define per(i,n) for(int i=int(n)-1;i>=0;i--) #define per1(i,n) for(int i=int(n);i>0;i--) #define all(c) c.begin(),c.end() #define si(x) int(x.size()) #define pb push_back #define eb emplace_back #define fs first #define sc second template<class T> using V = vector<T>; template<class T> using VV = vector<vector<T>>; template<class T,class U> bool chmax(T& x, U y){ if(x<y){ x=y; return true; } return false; } template<class T,class U> bool chmin(T& x, U y){ if(y<x){ x=y; return true; } return false; } template<class T> void mkuni(V<T>& v){sort(all(v));v.erase(unique(all(v)),v.end());} template<class T> int lwb(const V<T>& v, const T& a){return lower_bound(all(v),a) - v.begin();} template<class T> V<T> Vec(size_t a) { return V<T>(a); } template<class T, class... Ts> auto Vec(size_t a, Ts... ts) { return V<decltype(Vec<T>(ts...))>(a, Vec<T>(ts...)); } template<class S,class T> ostream& operator<<(ostream& o,const pair<S,T> &p){ return o<<"("<<p.fs<<","<<p.sc<<")"; } template<class T> ostream& operator<<(ostream& o,const vector<T> &vc){ o<<"{"; for(const T& v:vc) o<<v<<","; o<<"}"; return o; } constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n-1); } #ifdef LOCAL #define show(x) cerr << "LINE" << __LINE__ << " : " << #x << " = " << (x) << endl void dmpr(ostream& os){os<<endl;} template<class T,class... Args> void dmpr(ostream&os,const T&t,const Args&... args){ os<<t<<" ~ "; dmpr(os,args...); } #define shows(...) cerr << "LINE" << __LINE__ << " : ";dmpr(cerr,##__VA_ARGS__) #define dump(x) cerr << "LINE" << __LINE__ << " : " << #x << " = {"; \ for(auto v: x) cerr << v << ","; cerr << "}" << endl; #else #define show(x) void(0) #define dump(x) void(0) #define shows(...) void(0) #endif template<class D> D divFloor(D a, D b){ return a / b - (((a ^ b) < 0 && a % b != 0) ? 1 : 0); } template<class D> D divCeil(D a, D b) { return a / b + (((a ^ b) > 0 && a % b != 0) ? 1 : 0); } #line 5 "1986.cpp" int main(){ cin.tie(0); ios::sync_with_stdio(false); //DON'T USE scanf/printf/puts !! cout << fixed << setprecision(20); int N; cin >> N; if(N%2 == 0) cout << N/2 << endl; else cout << 1 << endl; }