#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;
             }