import java.util.Scanner;

public class No388 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int s = sc.nextInt();
		int f = sc.nextInt();
		if(s % f == 0) {
			System.out.println(s / f + 1);
		}else {
			System.out.println(s / f);
		}
	}
}