#include<bits/stdc++.h>
using namespace std;
typedef ll long long;
const int N = 1e ;
int main()
{
	ios::sync_with_stdio(nullptr);
	cin.tie(0), cout.tie(0);
	freopen("replace.in", "r", stdin);
	freopen("replace.out", "w", stdout);
	cout << 0 << "\n"; 
	return 0;
}

