Задача, найти сумму числе записанных буквами

 def words_to_numbers(word): 
    """Преобразует числа, записанные словами, в их числовое представление.""" 
    numbers = { 
        "one": 1, 
        "two": 2, 
        "three": 3, 
        "four": 4, 
        "five": 5, 
        "six": 6, 
        "seven": 7, 
        "eight": 8, 
        "nine": 9, 
        "ten": 10 
    } 
    return numbers.get(word.lower(), None) 
 
def numbers_to_words(number): 
    """Преобразует числовое представление в числа, записанные словами.""" 
    numbers = { 
        1: "one", 
        2: "two", 
        3: "three", 
        4: "four", 
        5: "five", 
        6: "six", 
        7: "seven", 
        8: "eight", 
        9: "nine", 
        10: "ten", 
        0: "zero" 
    } 
    return numbers.get(number, None) 
 
def calculate_expression(expression): 
    """Вычисляет выражение в текстовом формате и возвращает результат словами.""" 
    parts = expression.split() 
     
    if len(parts) != 3: 
        raise ValueError("Input should contain two numbers and an operator separated by spaces.") 
     
    # Разбираем числа и оператор 
    first_number = words_to_numbers(parts[0]) 
    operator = parts[1] 
    second_number = words_to_numbers(parts[2]) 
     
    if first_number is None or second_number is None: 
        raise ValueError("Invalid number word in the input.") 
     
    if operator not in ["+", "-"]: 
        raise ValueError("Operator should be '+' or '-'.") 
     
    # Вычисляем результат 
    if operator == "+": 
        result = first_number + second_number 
    elif operator == "-": 
        result = first_number - second_number 
     
    # Преобразуем результат в слова 
    result_word = numbers_to_words(result) 
    if result_word is None: 
        raise ValueError("Result is out of bounds (valid range: 0 to 10).") 
     
    return result_word 
 
# Пример использования 
input_expression = "three + five" 
result = calculate_expression(input_expression) 
print(result)  # Вывод: eight 
 

 def words_to_number(word): 
    num_dict = { 
        'one': 1, 
        'two': 2, 
        'three': 3, 
        'four': 4, 
        'five': 5, 
        'six': 6, 
        'seven': 7, 
        'eight': 8, 
        'nine': 9, 
        'ten': 10 
    } 
    return num_dict[word] 
 
def number_to_words(number): 
    words_dict = { 
        -10: 'minus ten', 
        -9: 'minus nine', 
        -8: 'minus eight', 
        -7: 'minus seven', 
        -6: 'minus six', 
        -5: 'minus five', 
        -4: 'minus four', 
        -3: 'minus three', 
        -2: 'minus two', 
        -1: 'minus one', 
        0: 'zero', 
        1: 'one', 
        2: 'two', 
        3: 'three', 
        4: 'four', 
        5: 'five', 
        6: 'six', 
        7: 'seven', 
        8: 'eight', 
        9: 'nine', 
        10: 'ten' 
    } 
    return words_dict[number] 
 
def calculate(input_string): 
    parts = input_string.split() 
     
    num1_word = parts[0] 
    operator = parts[1] 
    num2_word = parts[2] 
     
    num1 = words_to_number(num1_word) 
    num2 = words_to_number(num2_word) 
     
    if operator == '+': 
        result = num1 + num2 
    elif operator == '-': 
        result = num1 - num2 
    else: 
        raise ValueError("Unsupported operator. Use '+' or '-'") 
     
    # Ensure the result is within the range -10 to 10, as per problem statement 
    if not (-10 <= result <= 10): 
        raise ValueError("Result out of range. Valid results are from minus ten to ten.") 
     
    return number_to_words(result) 
 
# Пример использования с пользовательским вводом: 
try: 
    input_string = input("Enter two numbers (one to ten) in words and an operator (+ or -): ") 
    output = calculate(input_string) 
    print(output) 
except ValueError as e: 
    print(e)