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