#include<iostream>
#include<cstdio>
#include<cstring>
#include<cmath>
#include<algorithm>
#include<string>
#include<map>
using namespace std;
int main(){
	freopen("employ.in","r",stdin);
	freopen("employ.out","w",stdout);
	cout<<0;
	return 0;
}/*
*/
