#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 {
	  }
}

	return 0;
}