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

using ll = long long;
using P = pair<ll, ll>;
const ll INF = (1LL << 61);
ll mod = 998244353;


signed main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	int V, D; cin >> V >> D;
	if (D == 1) {
		for (int i = 0; i < V; i++) {
			for (int j = 0; j < V; j++) {
				cout << 1;
			}
			cout << endl;
		}
	}
	else {
		for (int i = 0; i < V; i++) {
			for (int j = 0; j < V; j++) {
				if (i == 0 || j == 0)cout << 1;
				else cout << 0;
			}
			cout << endl;
		}
	}
	return 0;
}