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

}