import java.util.Scanner;

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

        // a b ともに正の整数。(1≤a,b≤109)
        int s = sc.nextInt();
        int f = sc.nextInt();

        System.out.println(s / f + 1);
    }
}