#include<bits/stdc++.h>
using namespace std;
char a[10][10];
string s;
int main(){
	for(int i = 0; i < 10; i++){
		for(int j = 0; j < 10; j++){
			a[i][j] = '.';
		}
	}
	a[1][1] = '#', a[1][3] = '#', a[3][1] = '#', a[3][3] = '#';
	while(1){
		cout << "LEFT" << endl;
		cin >> s;
		if(s == "N") break;
	}
	
	cout << "Go" << endl;
	cin >> s;
	if(s == "FAIL") a[1][2] = '#';
	
	cout << "LEFT" << endl;
	cin >> s;
	cout << "Go" << endl;
	cin >> s;
	if(s == "FAIL") a[2][1] = '#';
	
	cout << "LEFT" << endl;
	cin >> s;
	cout << "Go" << endl;
	cin >> s;
	if(s == "FAIL") a[3][2] = '#';
	
	cout << "LEFT" << endl;
	cin >> s;
	cout << "Go" << endl;
	cin >> s;
	if(s == "FAIL") a[2][3] = '#';
	
	cout << "END" << endl; 
	cout << "3 3" << endl;
	for(int i = 1; i <= 3; i++){
		for(int j = 1; j <= 3; j++){
			cout << a[i][j];
		}
		cout << endl;
	}
	
	return 0;
}