def fancy_divide(list_of_numbers, index):
  denom = list_of_numbers[index]
  return [simple_divide(item, denom) for item in list_of_numbers]

def simple_divide(item, denom):
  try:
    return item / denom
  except ZeroDivisionError:
    return 0
a=[int(x) for x in input().split()]
index=int(input())
print(fancy_divide(a,index))