#include <bits/stdc++.h>
using namespace std;
int main() {
  long long n, k;
  cin >> n >> k;
  long long mat[100][100] = {0};
  long long cpt = 0;
  for (int i = 0; i < n; i++) {
    for (int j = i; j < n; j++) {
      if (i == j) {
        if (k - cpt > 0 && mat[i][j] == 0) {
          mat[i][j] = 1;
          cpt++;
        }
      } else {
        if (k - cpt >= 2) {
          mat[i][j] = 1;
          cpt++;
          mat[j][i] = 1;
          cpt++;
        }
      }
    }
  }
  long long i = 0;
  while (i < n && cpt != k) {
    if (mat[i][i] == 0) {
      mat[i][i] = 1;
      cpt++;
    }
    i++;
  }
  if ((n * n < k) || cpt != k)
    cout << -1 << endl;
  else {
    for (int i = 0; i < n; i++) {
      for (int j = 0; j < n; j++) {
        cout << mat[i][j] << " ";
      }
      cout << endl;
    }
  }
  return 0;
}
