import java.util.Scanner;

public class No388 {
	public static void main(String[]args) {

		Scanner sc = new Scanner(System.in);

		int s,f,n ;

		do {
			s = sc.nextInt();
		}while(s<0 & s>456);
		do {
			f = sc.nextInt();
		}while(1>f & f>123);

		n=s/f;

		System.out.println(n+1);


	}

}