#include <bits/stdc++.h>
using namespace std;
long long n, k, a[505][505];
inline long long read() {
  long long q = 0, f = 1;
  char ch = getchar();
  while (!isdigit(ch)) {
    if (ch == '-') f = 0;
    ch = getchar();
  }
  while (isdigit(ch)) q = (q << 3) + (q << 1) + (ch ^ 48), ch = getchar();
  return f ? q : -q;
}
inline void print(long long x) {
  if (x < 0) putchar('-'), x = -x;
  if (x > 9) print(x / 10);
  putchar(x % 10 + 48);
}
signed main() {
  n = read(), k = read();
  if (k > n * n) {
    putchar('-'), putchar('1');
    return 0;
  };
  for (long long i = 0; i < n && k; ++i) {
    a[i][i] = 1, --k;
    for (long long j = i + 1; j < n && k > 1; ++j)
      a[i][j] = a[j][i] = 1, -- --k;
  }
  for (long long i = 0; i < n; ++i) {
    for (long long j = 0; j < n; ++j) print(a[i][j]), putchar(' ');
    putchar('\n');
  }
  return 0;
}
