#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;
}