#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); ++i)
#define srep(i,s,t) for (int i = s; i < t; ++i)
#define drep(i,n) for(int i = (n)-1; i >= 0; --i)
using namespace std;
typedef long long int ll;
typedef pair<int,int> P;
#define yn {puts("YES");}else{puts("NO");}
#define MAX_N 200005

int main() {
    int v, d;
    cin >> v >> d;
    if(d == 1){
        rep(i,v){
            rep(j,v){
                cout << 1;
            }
            cout << endl;
        }
        return 0;
    }else{
        rep(i,v){
            rep(j,v){
                if(i==0||j==0) cout << 1;
                else cout << 0;
            }
            cout << endl;
        }
    }

    
        
    return 0;
}