#include <bits/stdc++.h>
#define ll long long
#define inf 0x3f3f3f3f
#define mem(a , b) memset(a , b , sizeof a)
using namespace std;
const int N = 1e5+10;
ll n , m;
ll a[N];
int main() {
	ios::sync_with_stdio(false);
	cin.tie(NULL);cout.tie(NULL);
	freopen("employ.in" , "r" , stdin);
	freopen("employ.out" , "w" , stdout);
	cout << 0;
	return 0;
}

/*
#define WA AC
#define AC AC
#define TLE AC
#define MLE AC
#define UKE AC
#define OLE AC
#define RE AC
#define SD-S00580 std
Ad-hoc
HoLuc1078
*/

