#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <cmath>
#include <map>
#include <queue>
#include <iomanip>
#include <set>
#include <tuple>
#define mkp make_pair
#define mkt make_tuple
#define rep(i,n) for(int i = 0; i < (n); ++i)
#define all(v) v.begin(),v.end()
using namespace std;
typedef long long ll;
const ll MOD=1e9+7;
template<class T> void chmin(T &a,const T &b){if(a>b) a=b;}
template<class T> void chmax(T &a,const T &b){if(a<b) a=b;}

int main(){
  cin.tie(0);
  ios::sync_with_stdio(false);

  int N,D;
  cin>>N>>D;

  vector<vector<int>> ans(N,vector<int> (N,0));
  if(D==1){
    rep(i,N) rep(j,N) ans[i][j]=1;
  }else{
    rep(i,N){
      ans[i][0]=1;
      ans[0][i]=1;
    }
  }

  for(auto v:ans){
    for(auto n:v) cout<<n;
    cout<<"\n";
  }

  return 0;
}