#include<bits/stdc++.h>
using namespace std;
#define int long
using pi=pair<int,int>;
signed main(){
    int v, d;
    cin >> v >> d;
    vector<vector<bool>> G(v, vector<bool>(v, false));
    if(d==1)G=vector<vector<bool>>(v,vector<bool>(v,true));
    else{
        G[0] = vector<bool>(v, true);
        for (int i = 1; i < v;++i){
            G[i][0] = true;
        }
    }
    for(auto g:G){
        for(auto i:g)
            cout << i;
        cout << endl;
    }
}