#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;

signed main(){
	//freopen("xxx.in","r",stdin);
	//freopen("xxx.out","w",stdout);
	ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);

	return 0;
}