import java.util.Scanner;

public class No388 {
	private static final String k = " ";

	public static void main(String[] args) {
		String input = null;
		Scanner sc = new Scanner(System.in);
		input = sc.nextLine();
		String[] split = input.split(k);
		int a = Integer.parseInt(split[0]);
		int b = Integer.parseInt(split[1]);

		int c = (a / b) + 1;
		System.out.println(c);
		sc.close();
	}

}