import java.util.Scanner;

public class Main{

     public static void main(String []args){
 
		Scanner scan = new Scanner(System.in);
		String[] strArray = scan.nextLine().split(" ");

        int H = Integer.parseInt(strArray[0]);
        int A = Integer.parseInt(strArray[1]);
        int lastCount = 0;
        
        for (int i = 1; H > 0; i++) {
            H = H - A;
            lastCount = i;
        }

        System.out.println(lastCount);

     }
}

/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