#include <bits/stdc++.h>
using namespace std;
int n, q;
string s[100005][2], s1, s2;
typedef long long li;
unsigned li pp666(string w) {
	unsigned li res=0;
	for(int i=0; i<w.size(); i++) {
		res=(res*131)+w[i];
	}
	return res;
}
int main() {
	freopen("employ.in", "r", stdin);
	freopen("employ.out", "w", stdout);
	cin.tie(0);
	cout.tie(0);
	cout << 0;
	return 0;
}
