#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;
}