#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll=long long;
using ld=long double;
ld pie=3.141592653589793;
ll inf=144499999999994;
ll mod=1000000007;
int main(){
    ll v,d;
    cin >> v >> d;
    if (d==1)
    {
        for (ll i = 0; i < v; i++)
        {
            for (ll j = 0; j < v; j++)
            {
                cout << 1;
            }
            cout << endl;
        }
    }else{
        for (ll i = 0; i < v; i++)
        {
            for (ll j = 0; j < v; j++)
            {
                if (i==j)
                {
                    cout << 0;
                }else{
                    cout << 1;
                }
            }
            cout << endl;
        }
        
    }
    
}