#include<bits/stdc++.h>
using namespace std;
//#define int long long
#define REP(i,m,n) for(int i=(m);i<(n);i++)
#define rep(i,n) REP(i,0,n)
#define pb push_back
#define all(a) a.begin(),a.end()
#define rall(c) (c).rbegin(),(c).rend()
#define mp make_pair
#define endl '\n'
#define vec vector<ll>
#define mat vector<vector<ll> >
#define fi first
#define se second
#define double long double
typedef long long ll;
typedef unsigned long long ull;
typedef pair<ll,ll> pll;
//typedef long double ld;
typedef complex<double> Complex;
const ll INF=1e9+7;
const ll inf=INF*INF;
const ll mod=1e9+7;
const ll MAX=140010;


signed main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    ll v,d;cin>>v>>d;
    vector<vector<ll> >ans(v,vector<ll>(v));
    if(d==1){
        rep(i,v){
            rep(j,v){
                ans[i][j]=1;
            }
        }
    }else{
        REP(i,0,v)ans[0][i]=1;
        REP(i,0,v)ans[i][0]=1;
    }
    rep(i,v){
        rep(j,v)cout<<ans[i][j];
        cout<<endl;
    }
}