import java.util.Scanner;

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

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