text = None
text = input('Number: ')
try:
    text = int(text)
    text = 2 * text
    print(text)
except ValueError:
    pass
    # print(text, 'is not a fixed number')

try:
    real = float(text)
    print(2 * real)
except ValueError:
    pass
    # print(text, 'is not a floating point number')

print(2 * text)
# 2*10 + 0 = 20
# 20 * 10 + 5 = 205

# Python data types:
# bool: {False, True}
# int: {fixed two-complement + arbitrary precision}
# float: IEEE 754 (double)
# str: Unicode text
# None: