import java.util.Scanner;

public class Main {

	public static void main(String[] args) {


		Scanner sc = new Scanner(System.in);
		int answer = 0;
		int hp = sc.nextInt();
		int attack = sc.nextInt();

		while(hp > 0) {
			hp -= attack;
			answer++;
		}

		System.out.println(answer);
	}
} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {


		Scanner sc = new Scanner(System.in);
		int answer = 0;
		int hp = sc.nextInt();
		int attack = sc.nextInt();

		while(hp > 0) {
			hp -= attack;
			answer++;
		}

		System.out.println(answer);
	}
} Main public static void main(String[] args) {


		Scanner sc = new Scanner(System.in);
		int answer = 0;
		int hp = sc.nextInt();
		int attack = sc.nextInt();

		while(hp > 0) {
			hp -= attack;
			answer++;
		}

		System.out.println(answer);
	} main {


		Scanner sc = new Scanner(System.in);
		int answer = 0;
		int hp = sc.nextInt();
		int attack = sc.nextInt();

		while(hp > 0) {
			hp -= attack;
			answer++;
		}

		System.out.println(answer);
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int answer = 0; answer 0 int hp = sc.nextInt(); hp sc.nextInt() sc.nextInt sc int attack = sc.nextInt(); attack sc.nextInt() sc.nextInt sc while(hp > 0) {
			hp -= attack;
			answer++;
		} hp > 0 hp 0 {
			hp -= attack;
			answer++;
		} hp -= attack hp attack answer++ answer System.out.println(answer) System.out.println System.out System System.out answer String[] args args public class Main {

	public static void main(String[] args) {


		Scanner sc = new Scanner(System.in);
		int answer = 0;
		int hp = sc.nextInt();
		int attack = sc.nextInt();

		while(hp > 0) {
			hp -= attack;
			answer++;
		}

		System.out.println(answer);
	}
} public class Main {

	public static void main(String[] args) {


		Scanner sc = new Scanner(System.in);
		int answer = 0;
		int hp = sc.nextInt();
		int attack = sc.nextInt();

		while(hp > 0) {
			hp -= attack;
			answer++;
		}

		System.out.println(answer);
	}
} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {


		Scanner sc = new Scanner(System.in);
		int answer = 0;
		int hp = sc.nextInt();
		int attack = sc.nextInt();

		while(hp > 0) {
			hp -= attack;
			answer++;
		}

		System.out.println(answer);
	}
}