import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		double a = sc.nextInt();
		double b = sc.nextInt();
		
		int result = (int)Math.ceil(a / b);

		if(a % b == 0) {
			result += 1;
		}

		System.out.println(result);

		
		sc.close();
	}
}