#include <bits/stdc++.h>
using namespace std;
const int N = 120;
int a[N][N], n, k;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cin >> n >> k;
  if (k > n * n) {
    cout << "-1\n";
  } else {
    for (int i = 0; i < n && k > 0; i++) {
      a[i][i] = 1, k--;
      for (int j = i + 1; j < n && k > 1; j++) {
        a[i][j] = 1, a[j][i] = 1, k -= 2;
      }
    }
    for (int i = 0; i < n; i++) {
      for (int j = 0; j < n; j++) {
        cout << a[i][j] << (j + 1 == n ? "\n" : " ");
      }
    }
  }
  return 0;
}
