#include<bits/stdc++.h>
#define endl '\n'
using namespace std;
typedef long long ll;

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

	return 0;
}

