import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        // 自分の得意な言語で
        // Let's チャレンジ！！

        Scanner sc = new Scanner(System.in);
        String[] input = sc.nextLine().split(" ");
        int h = Integer.parseInt(input[0]);
        int a = Integer.parseInt(input[1]);

        System.out.println(h / a + (h % a > 0 ? 1 : 0));
    }
}
/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