#include <stdio.h>



int main()
{
  int H,A,r,s;
  scanf("%d%d",&H,&A);
  r=H/A;
  s=H%A;
  if(s==0)
  printf("%d",r);
  else if(s!=0)
  printf("%d",r+1);
  else if(H<=A)
  printf("%d",1);
  return 0;
}