import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

            Scanner sc = new Scanner (System.in);

            int HP;
            int attack;
            int need;

            HP = sc.nextInt();
            attack = sc.nextInt();

            need = (HP + attack -1) / attack;

            if(need == 0) {
                System.out.println(1);
            }
            else if ( HP == attack){
                System.out.println(1);
            }
            else {
                System.out.println(need);
            }

        }
    }
/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