#include <iostream>
#include <cassert>
using namespace std;

constexpr long long p = (long long) 1e9 + 7;

int main() {
  int V, D;
  cin >> V >> D;
  if (D==1) {
    for (int i=0;i<V;++i)
      for (int j=0;j<V;++j)
        cout << 1 << (j==V-1?"\n":"");
  } else {
    for (int i=0;i<V;++i)
      for (int j=0;j<V;++j)
        cout << ((i==0||j==0)?1:0) << (j==V-1?"\n":"");
  }
  return 0;
}