import java.util.Scanner;

class Main
{
    public static void main(String[]args) {
        int H,A,n;
        n=0;
        Scanner sc=new Scanner(System.in);
        H=sc.nextInt();
        A=sc.nextInt();
        
        while(H>0){
            H-=A;
            n++;
        }
        System.out.println(n);
        sc.close();
    }
}
/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