def season(x):
    months = range(13)
    if x in months[1:2]:
        print('Это зима!')
    elif x in months[3:5]:
        print('Это весна!')
    elif x in months[6:8]:
        print('Это лето!')
    elif x in months[9:11]:
        print('Это осень!')
    elif x == months[12]:
        print('Это зима!')
    else:
        print('Неправильный номер месяца!')
 
x = int(input('Введите номер месяца: '))
print(season(x))

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