#include <bits/stdc++.h>
using namespace std;
string a[1001];
int main(){
	int n,m;cin>>n>>m;
	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; 
		}
	}
	cout<<"###"<<endl;
	cout<<"#.#"<<endl;
	cout<<"###"<<endl;
	return 0;
}