#include <iostream>
#include <algorithm>
#include <cstring>
#include <cstdio>
#include <cmath>
#include <queue>
using namespace std;
const int N=1e6+7;

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0),cout.tie(0);
	freopen("employ.in","r",stdin);
	freopen("employ.out","w",stdout);
	cout<<0; 
	return 0;
} 
