#include<bits/stdc++.h>
#define int long long
using namespace std;
void IOS(){ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);}
signed main(){
	IOS();
	freopen("employ.in","r",stdin);
	freopen("employ.out","w",stdout);
	cout<<0;
	return 0;
}
