#include <bits/stdc++.h>
using namespace std;

int main(){
	while(true){
		cout << "GO" << '\n';
		string s;
		cin >> s;
		if(s == "SUCC"){
			cout << "END" << '\n';
			cout << 5 << " " << 5 << '\n';
			for(int i =1;i <= 5;i ++){
				for(int j = 1;j <= 5;j ++){
					if(i == 1 || j == 1 || i == 5 || j == 5) cout << '#';
					else cout << '.';
				}
				cout << '\n';
			}
			break;
		}
	}
	return 0;
}