#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 { ...  } }
}