import java.util.Scanner;

public class Main {
    public static void main(String args[]) {
        Scanner scan = new Scanner(System.in);
        String H = scan.next();
        String A = scan.next();

        int h = Integer.parseInt(H);
        int a = Integer.parseInt(A);

        int num = h / a;
        if ((h % a) != 0) {
            num = num + 1;
        }

        System.out.println(num);
    }
}

/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