#include<bits/stdc++.h>
using namespace std;
#define int long long 
signed main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int command,all_explored,n,m;
	cin>>n>>m;
	while (true) {
		string feedback;
		command =0;
		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<<"END";
		}
	}
	return 0; 
}