03. Elevator

import java.util.Scanner;

public class Elevator_03 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner (System.in);
        int people = Integer.parseInt(scanner.nextLine());
        int capacity = Integer.parseInt(scanner.nextLine());

        //курс = people / capacity; (нагоре)
        double courses = people * 1.0 / capacity;

        System.out.printf("%.0f", Math.ceil(courses));

    }
}