#include<bits/stdc++.h>
using namespace std;
int main(){
	string command;
	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;
}