#include<bits/stdc++.h>
 using namespace std;
 long long a[1005][1005];
 long long n,m;
 int main(){
 while (true) {
 string feedback,command;
 command = "LEFT"; 
 cout << command << endl;
// cin >> feedback;
 feedback = get_feedback(command);
 if (all_explored) {
 cout << "END" << endl;
 cout << n << " " << m << endl;
 for (int i = 0; i < n; i++) {
 for (int j = 0; j < m; j++) {
 cout << a[i][j];}
 cout << endl;}
 break;}
// else {
/* }*/}
	return 0;
}