import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.List;
import java.util.Queue;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		execute5_3();
	}
	
	private static void execute5_3() {
		try (Scanner sc = new Scanner(System.in)) {
			int H = sc.nextInt();
			int A = sc.nextInt();
			
			int ans = (H+A-1)/A;
			
			
			System.out.println(ans);
		}
	}
} import java.util.ArrayDeque; ArrayDeque java.util import java.util.Arrays; Arrays java.util import java.util.List; List java.util import java.util.Queue; Queue java.util import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {
		execute5_3();
	}
	
	private static void execute5_3() {
		try (Scanner sc = new Scanner(System.in)) {
			int H = sc.nextInt();
			int A = sc.nextInt();
			
			int ans = (H+A-1)/A;
			
			
			System.out.println(ans);
		}
	}
} Main public static void main(String[] args) {
		execute5_3();
	} main {
		execute5_3();
	} execute5_3() execute5_3 String[] args args private static void execute5_3() {
		try (Scanner sc = new Scanner(System.in)) {
			int H = sc.nextInt();
			int A = sc.nextInt();
			
			int ans = (H+A-1)/A;
			
			
			System.out.println(ans);
		}
	} execute5_3 {
		try (Scanner sc = new Scanner(System.in)) {
			int H = sc.nextInt();
			int A = sc.nextInt();
			
			int ans = (H+A-1)/A;
			
			
			System.out.println(ans);
		}
	} try (Scanner sc = new Scanner(System.in)) {
			int H = sc.nextInt();
			int A = sc.nextInt();
			
			int ans = (H+A-1)/A;
			
			
			System.out.println(ans);
		} {
			int H = sc.nextInt();
			int A = sc.nextInt();
			
			int ans = (H+A-1)/A;
			
			
			System.out.println(ans);
		} Scanner sc = new Scanner(System.in) Scanner sc = new Scanner(System.in) new Scanner(System.in) int H = sc.nextInt(); H sc.nextInt() sc.nextInt sc int A = sc.nextInt(); A sc.nextInt() sc.nextInt sc int ans = (H+A-1)/A; ans (H+A-1)/A (H+A-1) H+A H A 1 A System.out.println(ans) System.out.println System.out System System.out ans public class Main {

	public static void main(String[] args) {
		execute5_3();
	}
	
	private static void execute5_3() {
		try (Scanner sc = new Scanner(System.in)) {
			int H = sc.nextInt();
			int A = sc.nextInt();
			
			int ans = (H+A-1)/A;
			
			
			System.out.println(ans);
		}
	}
} public class Main {

	public static void main(String[] args) {
		execute5_3();
	}
	
	private static void execute5_3() {
		try (Scanner sc = new Scanner(System.in)) {
			int H = sc.nextInt();
			int A = sc.nextInt();
			
			int ans = (H+A-1)/A;
			
			
			System.out.println(ans);
		}
	}
} Main
import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.List;
import java.util.Queue;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		execute5_3();
	}
	
	private static void execute5_3() {
		try (Scanner sc = new Scanner(System.in)) {
			int H = sc.nextInt();
			int A = sc.nextInt();
			
			int ans = (H+A-1)/A;
			
			
			System.out.println(ans);
		}
	}
}