import java.util.Scanner;

public class Main {
	//C問題

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int a;
		int h;
		int ans;

		h = scanner.nextInt();
		a = scanner.nextInt();
		ans = 0;

		while (true) {
			ans++;

			h = h - a;

			if (h <= 0) {
				break;
			}
		}

		System.out.println(ans);

	}

}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz