def hotel_cost(days):
  return 140 * days

def plane_ride_cost(city):
  if city == ("Charlotte"):
    return 183
  elif city == ("Tampa"):
    return 220
  elif city == ("Pittsburgh"):
    return 222
  elif city == ("Los Angeles"):
    return 475

def rental_car_cost(days):
  cost = days * 40
  if days >= 7:
    cost -= 50
  elif days >= 3 and days <= 6:
    cost -= 20 
  return cost

def trip_cost(city, days, spending_money):
  return rental_car_cost(days) + hotel_cost(days - 1) + plane_ride_cost(city) + spending_money

print trip_cost("Los Angeles", 5, 600)