#include<bits/stdc++.h> #include "debug.h" using namespace std; #define ll long long #define endl '\n' #define all(x) x.begin(), x.end() #define sz(x) (int)(x).size() #define yes cout<<"YES"<<endl #define no cout<<"NO"<<endl #define FAST (ios_base:: sync_with_stdio(false),cin.tie(NULL)); ll pow(ll x,ll y,ll m=1e9+7){ll ans=1;x%=m;while(y){if(y&1)ans=(ans*x)%m;x=(x*x)%m;y>>=1;}return ans;} void solve() { } signed main() { FAST; int TC = 1; //cin >> TC; while (TC--) solve(); }