import java.util.*;
import java.io.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int d = sc.nextInt();
        if(d == 1){
            for(int i = 0; i < n; i++){
                for(int j = 0; j < n; j++){
                    System.out.print(1);
                }
                System.out.println();
            }
        }else{
            for(int i = 0; i < n; i++){
                for(int j = 0; j < n; j++){
                    if(i == 0 || j == 0){
                        System.out.print(1);
                    }else{
                        System.out.print(0);
                    }
                }
                System.out.println();
            }
        }
        
    }

}