#include <iostream>
using namespace std;
int main(){
	int a,b,c,d,e;
	cin >> a >> b >> c >> d >> e;
	if(d==6||d==7||e==1){
		if(e==1&&(d==6||d==7)){
			cout << "unhappy" << endl;
			return 0;
		}
		cout << "happy" << endl;
		return 0;
	}
	cout << "unhappy" << endl;
}