#include <bits/stdc++.h>
using namespace std;
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) begin(v),end(v)
template<typename A, typename B> inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; }
template<typename A, typename B> inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; }
using ll = long long;
using pii = pair<int, int>;
constexpr ll INF = 1ll<<30;
constexpr ll longINF = 1ll<<60;
constexpr ll MOD = 1000000007;
constexpr bool debug = false;
//---------------------------------//

int main() {
	int V, D;
	cin >> V >> D;
	vector<vector<int>> ans;
	if (D == 1) ans.assign(V, vector(V, 1));
	else {
		ans.assign(V, vector(V, 0));
		REP(i, V) ans[0][i] = 1;
		FOR(i, 1, V) ans[i][0] = 1;
	}
	REP(i, V) {
		REP(j, V) printf("%d", ans[i][j]);
		puts("");
	}
}