import java.util.Scanner;
import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        //コード
        Scanner scanner = new Scanner(System.in);
        int h = Integer.parseInt(scanner.next());
        int a = Integer.parseInt(scanner.next());

        int tmp_int = 1;
        for (int i=a; i < h; i+=a) {
            tmp_int++;
        }
        System.out.println(tmp_int);
    }
}
/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