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

int main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);cout.tie(0);
	while(true)
	{
		string feedback;
    	command=  ;
   		cout<<command<<'\n';
    	cin>>feedback;
    	if (all_explored)
		{
			cout<<"END"<<'\n';
			cout<<n<<" "<<m<<'\n';
			for(int i=0;i<n;i++)
			{
			    for(int j=0;j<m;j++)
					cout<<map[i][j];
				cout<<'\n';
			}
			break;
		}
	}
	return 0;
}