#include <bits/stdc++.h>

using namespace std;

int n, x, suma, sumb;

int main() {
	freopen("running.in", "r", stdin);
	freopen("running.out", "w", stdout);
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin >> n >> x;
	for(int i = 1; i <= n; i ++) {
		int a;
		cin >> a;
		suma += a;
	}
	for(int i = 1; i <= n; i ++) {
		int b;
		cin >> b;
		sumb += b;
	}
	suma = (suma - sumb) * x;
	if(suma > 10000) {
		cout << "2 hard 4 me\n";
	}
	else {
		cout << suma << "\n";
	}
	return 0;
}