08. Letters Change Numbers Text Processing - Exercise 100/100

# 08. Letters Change Numbers Text Processing - Exercise 100/100
# https://judge.softuni.org/Contests/Compete/Index/1740#7

def char_position(some_letter):
    return ord(some_letter.lower()) - 96


data = input().split()
final_sum = []

for all_letters in data:
    number = ""
    non_digits = ""
    for char in all_letters:
        if not char.isalpha():
            number += char
        else:
            non_digits += char

    all_letters = all_letters.replace(number, "")
    total_sum = 0
    first_letter = all_letters[0]
    last_letter = all_letters[-1]

    if first_letter.islower():
        total_sum += float(number) * char_position(first_letter)
    elif first_letter.isupper():
        total_sum += float(number) / char_position(first_letter)

    if last_letter.islower():
        total_sum += char_position(last_letter)
    elif last_letter.isupper():
        total_sum -= char_position(last_letter)
    final_sum.append(total_sum)

if len(data):
    print(f"{sum(final_sum):.2f}")