#include<bits/stdc++.h>
#define rep(i,N) for(int i=0;i<(N);i++)
#define rrep(i, n) for (int i = (int)n-1; i >= 0; --i)
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
using namespace std;
const long long MOD = 1e9 + 7;
const long long INF = 1e12;
const int inf = 1e9;
const int mod = 1e9+7;
typedef long long ll;
typedef pair<ll,int> P;
typedef set<int> S;

template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }

__attribute__ ((constructor))
void fastio() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout << fixed << setprecision(10);
}

int main(){
    int v, d;
    cin >> v >> d;

    vector<vector<int>> ans(v, vector<int>(v, 0));

    if(d == 1){
        rep(i, v) rep(j, v) ans[i][j] = 1;
    }else{
        ans[0][0] = 1;
        rep(i,v){
            rep(j,v){
                if (i == 0 || j == 0) ans[i][j] = 1;
            }
        }
    }
    rep(i, v) { rep(j, v) cout << ans[i][j] << (j == v - 1 ? "\n" : ""); }
    return 0;
}