import java.math.*;
import java.util.*;

	public class Main {

		public static void main(String[] args) {

			Scanner sc = new Scanner(System.in);
			int h = sc.nextInt();
			int a = sc.nextInt();
			
			System.out.println((h+a-1)/a);
			
			
			
			
		}

	} import java.math.*; math.* java import java.util.*; util.* java public class Main {

		public static void main(String[] args) {

			Scanner sc = new Scanner(System.in);
			int h = sc.nextInt();
			int a = sc.nextInt();
			
			System.out.println((h+a-1)/a);
			
			
			
			
		}

	} Main public static void main(String[] args) {

			Scanner sc = new Scanner(System.in);
			int h = sc.nextInt();
			int a = sc.nextInt();
			
			System.out.println((h+a-1)/a);
			
			
			
			
		} main {

			Scanner sc = new Scanner(System.in);
			int h = sc.nextInt();
			int a = sc.nextInt();
			
			System.out.println((h+a-1)/a);
			
			
			
			
		} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int h = sc.nextInt(); h sc.nextInt() sc.nextInt sc int a = sc.nextInt(); a sc.nextInt() sc.nextInt sc System.out.println((h+a-1)/a) System.out.println System.out System System.out (h+a-1)/a (h+a-1) h+a h a 1 a String[] args args public class Main {

		public static void main(String[] args) {

			Scanner sc = new Scanner(System.in);
			int h = sc.nextInt();
			int a = sc.nextInt();
			
			System.out.println((h+a-1)/a);
			
			
			
			
		}

	} public class Main {

		public static void main(String[] args) {

			Scanner sc = new Scanner(System.in);
			int h = sc.nextInt();
			int a = sc.nextInt();
			
			System.out.println((h+a-1)/a);
			
			
			
			
		}

	} Main
import java.math.*;
import java.util.*;

	public class Main {

		public static void main(String[] args) {

			Scanner sc = new Scanner(System.in);
			int h = sc.nextInt();
			int a = sc.nextInt();
			
			System.out.println((h+a-1)/a);
			
			
			
			
		}

	}