def getDigitsOfLine(line) -> int:
    digits = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
    spelled_digits = ['zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine']
    first_digit = 0
    last_digit: int = None
    for i in range(len(line)):
        if line[i] in digits:
            if first_digit == 0:
                first_digit = digits.index(line[i])
            else:
                last_digit = digits.index(line[i])
        else:
            spelled: str = line[i]
            for j in range(i+1, len(line)):
                spelled += line[j]
                if spelled in spelled_digits:
                    if first_digit == 0:
                        first_digit = spelled_digits.index(spelled)
                    else:
                        last_digit = spelled_digits.index(spelled)
                    break
    if last_digit == None:
        last_digit = first_digit
    number = (first_digit * 10) + last_digit
    print(f'Number found: {number}')
    return number

lines = open('values2', 'r').readlines()

number_sum = 0

for line in lines:
    if line != '':
        number_sum += getDigitsOfLine(line)

print(f'Sum: {number_sum}') # 281