source_code: //package com.krakn.CF.D1159;
  
  import java.util.Scanner;
  
  public class Main {
  
      public static void main(String[] args) {
          Scanner sc = new Scanner(System.in);
  
          int n, k;
          n = sc.nextInt();
          k = sc.nextInt();
  
          int a = (n - k) / 2;
  
          StringBuilder s = new StringBuilder();
  
          int i;
          while (s.length() < n) {
              i = 0;
              while (i < a && s.length() < n) {
                  s.append("0");
                  i++;
              }
              if (s.length() < n) s.append("1");
          }
  
          System.out.println(s);
      }
  }
  