import java.util.Scanner;

public class Main {

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

		double H = sc.nextInt();
		double A = sc.nextInt();
		double Answer;

		Answer = Math.ceil(H/A);

		int D = (int) Answer;
		System.out.println(D);
	}
} import java.util.Scanner; Scanner java.util public class Main {

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

		double H = sc.nextInt();
		double A = sc.nextInt();
		double Answer;

		Answer = Math.ceil(H/A);

		int D = (int) Answer;
		System.out.println(D);
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		double H = sc.nextInt();
		double A = sc.nextInt();
		double Answer;

		Answer = Math.ceil(H/A);

		int D = (int) Answer;
		System.out.println(D);
	} main {
		Scanner sc = new Scanner(System.in);

		double H = sc.nextInt();
		double A = sc.nextInt();
		double Answer;

		Answer = Math.ceil(H/A);

		int D = (int) Answer;
		System.out.println(D);
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) double H = sc.nextInt(); H sc.nextInt() sc.nextInt sc double A = sc.nextInt(); A sc.nextInt() sc.nextInt sc double Answer; Answer Answer = Math.ceil(H/A) Answer Math.ceil(H/A) Math.ceil Math H/A H A int D = (int) Answer; D (int) Answer System.out.println(D) System.out.println System.out System System.out D String[] args args public class Main {

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

		double H = sc.nextInt();
		double A = sc.nextInt();
		double Answer;

		Answer = Math.ceil(H/A);

		int D = (int) Answer;
		System.out.println(D);
	}
} public class Main {

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

		double H = sc.nextInt();
		double A = sc.nextInt();
		double Answer;

		Answer = Math.ceil(H/A);

		int D = (int) Answer;
		System.out.println(D);
	}
} Main
import java.util.Scanner;

public class Main {

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

		double H = sc.nextInt();
		double A = sc.nextInt();
		double Answer;

		Answer = Math.ceil(H/A);

		int D = (int) Answer;
		System.out.println(D);
	}
}
