
import java.util.Scanner;

class Main {
	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		int H = Integer.parseInt(sc.next());
		int A = Integer.parseInt(sc.next());
		int count = 0;

		while(true) {
			if(H <= 0) break;
			count++;
			H -= A;

		}
		System.out.println(count);
	}
} import java.util.Scanner; Scanner java.util class Main {
	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		int H = Integer.parseInt(sc.next());
		int A = Integer.parseInt(sc.next());
		int count = 0;

		while(true) {
			if(H <= 0) break;
			count++;
			H -= A;

		}
		System.out.println(count);
	}
} Main public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		int H = Integer.parseInt(sc.next());
		int A = Integer.parseInt(sc.next());
		int count = 0;

		while(true) {
			if(H <= 0) break;
			count++;
			H -= A;

		}
		System.out.println(count);
	} main {

		Scanner sc = new Scanner(System.in);

		int H = Integer.parseInt(sc.next());
		int A = Integer.parseInt(sc.next());
		int count = 0;

		while(true) {
			if(H <= 0) break;
			count++;
			H -= A;

		}
		System.out.println(count);
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int H = Integer.parseInt(sc.next()); H Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int A = Integer.parseInt(sc.next()); A Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int count = 0; count 0 while(true) {
			if(H <= 0) break;
			count++;
			H -= A;

		} true {
			if(H <= 0) break;
			count++;
			H -= A;

		} if(H <= 0) break; H <= 0 H 0 break; count++ count H -= A H A System.out.println(count) System.out.println System.out System System.out count String[] args args

import java.util.Scanner;

class Main {
	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		int H = Integer.parseInt(sc.next());
		int A = Integer.parseInt(sc.next());
		int count = 0;

		while(true) {
			if(H <= 0) break;
			count++;
			H -= A;

		}
		System.out.println(count);
	}
}