Trade comission with 2d lists

town = input().lower()
sells = float(input())

towns = ["sofia", "varna", "plovdiv"]
com = [[0.05, 0.045, 0.055], [0.07, 0.075, 0.08], [0.08, 0.1, 0.12], [0.12, 0.13, 0.145]]
small = 0 <= sells <= 500
normal = 500 < sells <= 1000
big = 1000 < sells <= 10000
ultra = sells > 10000


if small:
  if town == (towns[0]):
    print(f"{(sells * (com[0][0])):.2f}")
  elif town == (towns[1]):
    print(f"{(sells * (com[0][1])):.2f}")
  elif town == (towns[2]):
    print(f"{(sells * (com[0][2])):.2f}")
  else:
    print("error")
elif normal:
  if town == (towns[0]):
    print(f"{(sells * (com[1][0])):.2f}")
  elif town == (towns[1]):
    print(f"{(sells * (com[1][1])):.2f}")
  elif town == (towns[2]):
    print(f"{(sells * (com[1][2])):.2f}")
  else:
    print("error")
elif big:
  if town == (towns[0]):
    print(f"{(sells * (com[2][0])):.2f}")
  elif town == (towns[1]):
    print(f"{(sells * (com[2][1])):.2f}")
  elif town == (towns[2]):
    print(f"{(sells * (com[2][2])):.2f}")
  else:
    print("error")
elif ultra:
  if town == (towns[0]):
    print(f"{(sells * (com[3][0])):.2f}")
  elif town == (towns[1]):
    print(f"{(sells * (com[3][1])):.2f}")
  elif town == (towns[2]):
    print(f"{(sells * (com[3][2])):.2f}")
  else:
    print("error")
else:
  print("error")