#include<bits/stdc++.h>
using namespace std;
const int mod=998244353;
int n,m;
int main(){
	freopen("employ.in","r",stdin);
	freopen("employ.out","w",stdout);
	ios::sync_with_stdio(false);
	cin.tie(0);
//	cin>>n>>m;
	cout<<0<<'\n';
	return 0;
}
