import java.util.*;

public class Main{
    public static void main(String[] args){
      Scanner scanner = new Scanner(System.in);
      String[] testList = scanner.nextLine().split(" ");
      int HP = Integer.parseInt(testList[0]);
      int ATTACK = Integer.parseInt(testList[1]);
      int attack_count = 0;
      
      if(HP % ATTACK == 0){
        attack_count = HP / ATTACK;
      }else{
        attack_count = HP / ATTACK + 1;
      }
      
      System.out.println(attack_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