#include<bits/stdc++.h>
using namespace std;
int main(){
	int a;
    double c,b;
    cin>>b>>a;
    b/=100;
    b*=b;
    c=a*1.0/b;
    if(c<18.0){
        cout<<"Too thin!&#92;n";
        for(int i=1;;i++){
            c=(a+i)*1.0/b;
            if(c>=18.0){
                cout<<i;
                return 0;
            }
        }
    }else if(c>24.0){
        cout<<"Too fat!&#92;n";
        for(int i=1;;i++){
            c=(a-i)*1.0/b;
            if(c<=24.0){
                cout<<i;
                return 0;
            }
        }
    }else{
        cout<<"Good!&#92;n";
    }
}