#include<bits/stdc++.h>
using namespace std;
int main(){
    float h;
    cin>>h;
    if(h>=86){
        cout<<"VERY GOOD";
    }
	if(60>=h<=85){
        cout<<"GOOD";
    }
	else{
	cout<<"bao";
    }
    return 0;
}
/**************************************************************
	Problem: 1035
	User: fuhoubin
	Language: C++
	Result: Wrong Answer
****************************************************************/