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

int main()
{
	int n,m,command,all_explored;
	while (true) 
	{
 		string feedback;
 		command = feedback;  
 		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 
		{
 			cout << command << endl;
			cin >> feedback;
 		}
	}
	return 0;
}