import java.io.*;
class Main
{
public static void main(String[] args) throws IOException{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));			   
String[] strs=br.readLine().trim().split("\\s+");     
  int h,a;
  h=Integer.parseInt(strs[0]);
  a=Integer.parseInt(strs[1]);
  if(h%a==0)
    System.out.println(h/a);
  else
    System.out.println((h/a)+1);
}
}
/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