#include<iostream>
#include<string>
#include<iomanip>
#include<cmath>
#include<vector>
#include<algorithm>
#include<utility>

using namespace std;

#define int long long
#define endl "\n"

constexpr long long INF = (long long)1e18;
constexpr long long MOD = 1'000'000'007; 

struct fast_io {
	fast_io(){
		std::cin.tie(nullptr);
		std::ios::sync_with_stdio(false);
	};
} fio;

signed main(){
	cout<<fixed<<setprecision(10);
	
	int V, D;
    
    cin>>V>>D;
    
    if(D == 1) {
        for(int i = 0; i < V; i++){
            for(int j = 0; j < V; j++){
                cout<<1;
            }
            cout<<endl;
        }
    } else {
        for(int j = 0; j < V; j++){
            cout<<1;
        }
        cout<<endl;
        for(int i = 1; i < V; i++){
            cout<<1;
            for(int j = 1; j < V; j++){
                cout<<0;
            }
            cout<<endl;
        }
    }
	
	
	return 0;
}