import java.util.Scanner;

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

		int h = Integer.parseInt(sc.next());
		int a = Integer.parseInt(sc.next());
		System.out.println((int)Math.ceil((double)h/a));
		sc.close();
	}
} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int h = Integer.parseInt(sc.next());
		int a = Integer.parseInt(sc.next());
		System.out.println((int)Math.ceil((double)h/a));
		sc.close();
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int h = Integer.parseInt(sc.next());
		int a = Integer.parseInt(sc.next());
		System.out.println((int)Math.ceil((double)h/a));
		sc.close();
	} main {
		Scanner sc = new Scanner(System.in);

		int h = Integer.parseInt(sc.next());
		int a = Integer.parseInt(sc.next());
		System.out.println((int)Math.ceil((double)h/a));
		sc.close();
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int h = Integer.parseInt(sc.next()); h Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int a = Integer.parseInt(sc.next()); a Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc System.out.println((int)Math.ceil((double)h/a)) System.out.println System.out System System.out (int)Math.ceil((double)h/a) Math.ceil Math (double)h/a (double)h a sc.close() sc.close sc String[] args args public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int h = Integer.parseInt(sc.next());
		int a = Integer.parseInt(sc.next());
		System.out.println((int)Math.ceil((double)h/a));
		sc.close();
	}
} public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int h = Integer.parseInt(sc.next());
		int a = Integer.parseInt(sc.next());
		System.out.println((int)Math.ceil((double)h/a));
		sc.close();
	}
} Main
import java.util.Scanner;

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

		int h = Integer.parseInt(sc.next());
		int a = Integer.parseInt(sc.next());
		System.out.println((int)Math.ceil((double)h/a));
		sc.close();
	}
}