import java.util.*;
import java.math.*;
/**
 * @author yamato
 *
 */
public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scanner = new Scanner(System.in);
		double H = scanner.nextInt();
		double A = scanner.nextInt();
		double ans = Math.ceil(H/A);
		
		System.out.println((int)ans);
		
	}

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

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scanner = new Scanner(System.in);
		double H = scanner.nextInt();
		double A = scanner.nextInt();
		double ans = Math.ceil(H/A);
		
		System.out.println((int)ans);
		
	}

} Main /**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scanner = new Scanner(System.in);
		double H = scanner.nextInt();
		double A = scanner.nextInt();
		double ans = Math.ceil(H/A);
		
		System.out.println((int)ans);
		
	} main {
		// TODO Auto-generated method stub
		Scanner scanner = new Scanner(System.in);
		double H = scanner.nextInt();
		double A = scanner.nextInt();
		double ans = Math.ceil(H/A);
		
		System.out.println((int)ans);
		
	} Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) double H = scanner.nextInt(); H scanner.nextInt() scanner.nextInt scanner double A = scanner.nextInt(); A scanner.nextInt() scanner.nextInt scanner double ans = Math.ceil(H/A); ans Math.ceil(H/A) Math.ceil Math H/A H A System.out.println((int)ans) System.out.println System.out System System.out (int)ans String[] args args public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scanner = new Scanner(System.in);
		double H = scanner.nextInt();
		double A = scanner.nextInt();
		double ans = Math.ceil(H/A);
		
		System.out.println((int)ans);
		
	}

} public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scanner = new Scanner(System.in);
		double H = scanner.nextInt();
		double A = scanner.nextInt();
		double ans = Math.ceil(H/A);
		
		System.out.println((int)ans);
		
	}

} Main
import java.util.*;
import java.math.*;
/**
 * @author yamato
 *
 */
public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scanner = new Scanner(System.in);
		double H = scanner.nextInt();
		double A = scanner.nextInt();
		double ans = Math.ceil(H/A);
		
		System.out.println((int)ans);
		
	}

}