#include<bits/stdc++.h>
using namespace std;

long a,b,q[1000010],j,z;
int m[10010];
int ans,ans1,ans2,ans3;

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;
}