#include<bits/stdc++.h>
#define int long long
#define endl '\n'
using namespace std;
int n,m;
signed main(){
	freopen("employ.in","r",stdin);
	freopen("employ.out","w",stdout);
	cout<<0;
	fclose(stdin);
	fclose(stdout);
	return 0;
} 
/*
please remember to
*/
