/******************************************************************************

                            Online Java Compiler.
                Code, Compile, Run and Debug java program online.
Write your code in this editor and press "Run" button to execute it.

*******************************************************************************/
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.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
/******************************************************************************

                            Online Java Compiler.
                Code, Compile, Run and Debug java program online.
Write your code in this editor and press "Run" button to execute it.

*******************************************************************************/
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);
	}
}
