#include<bits/stdc++.h>
using namespace std;
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	string cmd,out;
	while(true){
		cmd="GO";
		cout<<cmd;
		cin>>out;
		if(out=="END"){
			break;
		}else if(out=="FAIL"){
			
		}
	}
	return 0;
}