import java.util.*;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int A = sc.nextInt();
		int ans = 0;
		
		if (0 != H%A) {
			ans = H/A + 1;
		} else {
			ans = H/A;
		}
		System.out.println(ans);
	}
} import java.util.*; util.* java class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int A = sc.nextInt();
		int ans = 0;
		
		if (0 != H%A) {
			ans = H/A + 1;
		} else {
			ans = H/A;
		}
		System.out.println(ans);
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int A = sc.nextInt();
		int ans = 0;
		
		if (0 != H%A) {
			ans = H/A + 1;
		} else {
			ans = H/A;
		}
		System.out.println(ans);
	} main {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int A = sc.nextInt();
		int ans = 0;
		
		if (0 != H%A) {
			ans = H/A + 1;
		} else {
			ans = H/A;
		}
		System.out.println(ans);
	} 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 int ans = 0; ans 0 if (0 != H%A) {
			ans = H/A + 1;
		} else {
			ans = H/A;
		} 0 != H%A 0 H%A H A {
			ans = H/A + 1;
		} ans = H/A + 1 ans H/A + 1 H/A H A 1 {
			ans = H/A;
		} ans = H/A ans H/A H A System.out.println(ans) System.out.println System.out System System.out ans String[] args args
import java.util.*;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int A = sc.nextInt();
		int ans = 0;
		
		if (0 != H%A) {
			ans = H/A + 1;
		} else {
			ans = H/A;
		}
		System.out.println(ans);
	}
}