import java.util.*;
class Main{
	public static void main(String[]args){
    	Scanner in = new Scanner(System.in);
      	int h = in.nextInt();
      	int a = in.nextInt();
      	int i = 0;
        while(h>0){
        	h-=a;i++;
        }
      	System.out.println(i);
    }
}
/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