#include <bits/stdc++.h>
using namespace std;


int main(){
	int x,y,z;
	cin>>x>>y>>z;
	if(x >= 86 && y >= 86 && z >= 86 && (x + y + z) / 3 >= 90){
		cout<<"good";
	} else{
		cout<<"sorry";
	}
}
/**************************************************************
	Problem: 1657
	User: admin
	Language: C++
	Result: Accepted
	Time:15 ms
	Memory:2072 kb
****************************************************************/