import java.util.Scanner;

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

        int s = sc.nextInt();
        int f = sc.nextInt();
       
        int stairs = s/f;

        if(stairs <1){
        	System.out.println(1);
        }
        else{
        	System.out.println(stairs +1);
        }
    }
}