#include <bits/stdc++.h>
using namespace std;
const int N=200;
int a[N][N],n,m,b,c,d,e;
int main()
{
	while (true) {
    	string feedback;
    	command = ;
		cout << command << endl;
		cin >> feedback;
		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 << map[i][j];
				}
				cout << endl;
			}		
			break;
		} else {
		
			
		}
	}
	return 0;
}