package com.study.demo;

import java.util.Scanner;

public class test8 {
  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    int x = scanner.nextInt();
    int k = scanner.nextInt();
    int a = x / 1000 % k;
    int b = x / 100 % 10 % k;
    int c = x / 10 % 10 % k;
    int d = x % 10 % k;
    System.out.print(a);
    System.out.print(b);
    System.out.print(c);
    System.out.println(d);
  }
}