import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
Scanner SC = new Scanner(System.in);
int H = SC.nextInt();
int A = SC.nextInt();
System.out.println((H + A - 1)/A);
	}

} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
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) {
		// TODO Auto-generated method stub
Scanner SC = new Scanner(System.in);
int H = SC.nextInt();
int A = SC.nextInt();
System.out.println((H + A - 1)/A);
	} main {
		// TODO Auto-generated method stub
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) {
		// TODO Auto-generated method stub
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) {
		// TODO Auto-generated method stub
Scanner SC = new Scanner(System.in);
int H = SC.nextInt();
int A = SC.nextInt();
System.out.println((H + A - 1)/A);
	}

} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
Scanner SC = new Scanner(System.in);
int H = SC.nextInt();
int A = SC.nextInt();
System.out.println((H + A - 1)/A);
	}

}
