import java.util.Scanner;

public class Answer {
	public static void main(String str[]) {
        Scanner sc = new Scanner(System.in);

        int s = Integer.valueOf(sc.next());
        int f = Integer.valueOf(sc.next());

        int floor = (int) Math.floor((double) s / f) + 1;

        System.out.println(floor);

	}
}