#include <stdio.h>

int main(void)
{
  int S,F;

  scanf("%d", &S);  
  if(S > 456 || S < 0)
    printf("Error:Out of scope\n");
  scanf("%d", &F);
  if(F > 123 || F < 1)
    printf("Error:Out of scope\n");
  
  printf("%d\n", (S/F) + 1);
  
  return(0);
}