#include<iostream>
#include<cstdio>
#include<queue>
#include<algorithm>
using namespace std;
int main(){
	freopen("employ.in","r",stdin);
	freopen("employ.out","w",stdout);
	int n,m;
	cin>>n>>m;
	cout<<0;
	fclose(stdin);
	fclose(stdout);
	return 0;
} 
