CodingBat List no_teen_sum.py

##Given 3 int values, a b c, return their sum. However, if any of the values is a teen -- in the range 13..19 inclusive -- then that value counts as 0, except 15 and 16 do not count as a teens. Write a separate helper "def fix_teen(n):"that takes in an int value and returns that value fixed for the teen rule. In this way, you avoid repeating the teen code 3 times (i.e. "decomposition"). Define the helper below and at the same indent level as the main no_teen_sum().
##
##no_teen_sum(1, 2, 3) → 6
##no_teen_sum(2, 13, 1) → 3
##no_teen_sum(2, 1, 14) → 3


def no_teen_sum(a, b, c):
  return fix_teen(a) + fix_teen(b) + fix_teen(c)
  
def fix_teen(n):
  if n == 15 or n == 16:
    return n
  if n == 13 or n == 14 or n == 17 or n == 18 or n == 19:
    return 0
  else:
    return n