#include<bits/stdc++.h>
using namespace std;
int mp[111][111];
bool all_explored(){
	bool flag = true;
	for (int i = 1; i <= 100; i ++){
		for (int j = 1; j <= 100; j ++){
			if (mp[i][j] == 0) flag = false;
		}
	}
	return flag;
}
int main(){
	int posx=50, posy=50;
	int dir = 0; // unknown 
	cout << "LEFT" << endl ;
	while (true) {
		string feedback;
		cin >> feedback;
		if (all_explored()) {
			cout << "END" << endl;
			cout << 100 << " " << 100 << endl;
			for (int i = 1; i <= 100; i++) {
				for (int j = 1; j <= 100; j++) {
					cout << (mp[i][j]);
				}		
				cout << endl;
			}
			break;
		} 
		else {
			if (feedback == "N"){
				dir=1;  // ±±   
				posy --;
			} 
			else if (feedback == "S"){
				dir=2; // ÄÏ 
				posy ++; 
			}
			else if (feedback == "W"){
				dir=3; // Î÷ 
				posx --;
			} 
			else if (feedback == "E"){
				dir=4; // ¶« 
				posx ++;
			} 
			if (feedback.size() == 1 and posx >= 1 and posx <= 100 and posy>= 1 and posy <= 100){
				cout << "GO" << endl;
			}
			else if (feedback.size() == 1) cout << "LEFT" << endl;
			
			if (feedback == "SUCC"){
				mp[posx][posy] = 1;
				cout << "GO" << endl;
			}
			else if (feedback == "FAIL"){
				mp[posx][posy] = 2;
				cout << "LEFT" << endl;
			}
		}
	}
	return 0;
}