#include<bits/stdc++.h>
using namespace std;
int main(){
	int a;
	cin>>a;
	if(a>=86) cout<<"VERY GOOD";
	else if(a>=60&&a<=85) cout<<"GOOD";
	else cout<<"BAD";
}

#include<bits/stdc++.h>
using namespace std;
int main(){
	int n;
	cin>>n;
	if(n>85){
		cout<<"VERY GOOD";
	}
	else if(n>=60){
		cout<<"GOOD";
	}
	else{
		cout<<"BAD";
	}
    return 0;
}

#include <stdio.h> using namespace std; int main() { int num = 0; scanf("%d",&num); if(num>=86) printf("VERY GOOD"); else if(num>=60 && num<=85) printf("GOOD"); else if(num<60)printf("BAD"); }

#include<bits/stdc++.h>

using namespace std;

int main(){

int a;

cin>>a;

if(a>86&&a<=100)cout<<"VERY GOOD";

if(60<=a&&a<=85)cout<<"GOOD";

if(0<=a&&a<60)cout<<"BAD";

return 0;

//80分！！帮我看看哪错了

//报的这个错

//Wrong Answer 0a1 > VERY GOOD \ No newline a

}