def getDigitsOfLine(line) -> int:
    digits = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
    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])
    if last_digit == None:
        last_digit = first_digit
    number = (first_digit * 10) + last_digit
    print(f'Number found: {number}')
    return number

lines = open('values1', 'r').readlines()

number_sum = 0

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

print(f'Sum: {number_sum}') # 142