#include<bits/stdc++.h>
#include<cstdio>
using namespace std;
int main(){
	int x,y,z;
	cin>>x>>y>>z;
	if(y<=0 or y>315 or y>=x or x>1800 or z>=1000 or z<=100){
		cout<<"Wrong Data";
		return 0;
	}
	if(z*2<x){
		cout<<"No";
		return 0;
	}
	int o;
	if(z>=x)o=1;
	else o=2;
	cout<<"Yes\n";
	if(y+int(o*z*33/100)>=315)cout<<"Great";
	else if(y+int(o*z/2)>=315)cout<<"Eh..\nOK";
	else if(y+o*z>=315)cout<<"Oh..\nYes , If he can get 5-star.";
	else cout<<"No\nNo\nNo\n"<<y+int(o*z/2);
	return 0;
}