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

string a[505], s;

int main()
{
	cout << "GO\n";
	cin >> s;
	if (s == "FAILED")
	{
		cout << "LEFT\n";
		cin >> s;
		cout << "GO\n";
		cin >> s;
		if (s == "FAILED")
		{
			cout << "LEFT\n";
			cin >> s;
			cout << "GO\n";
			cin >> s;
			if (s == "FAILED")
			{
				cout << "LEFT\n";
				cin >> s;
				cout << "GO\n";
				cin >> s;
				if (s == "FAILED")
				{
					cout << "END\n";
					cout << "3 3\n";
					cout << "###\n";
					cout << "#.#\n";
					cout << "###";
					return 0;		
				}
			}
		}
	}
	while (1)
	{
		cout << "GO";
		cin >> s; 
		if (s == "FAILED")
		{
			cout << "LEFT";
			cin >> s;
		}
	}
	return 0;
}