import java.util.*;
import java.math.*;
import java.util.Arrays;

public class Main {

  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int h = sc.nextInt();
    int a = sc.nextInt();

    int count = 0;

    while (h > 0) {
      h -= a;
      count++;
    }

    System.out.println(count);

  }

}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz