import enum
import itertools
import decimal

class TopTenRichest(enum.Enum):
    Jeff_Bezos = '110.1 billion dollars'
    Bill_Gates = '106.2 bilion dollars'
    Bernard_Arnault = '101.2 billion dollars'
    Warren_Buffett = '84 billion dollars'
    Mark_Zuckerberg = '70.3 billion dollars'
    Amancio_Ortega = '70 billion dollars'
    Larry_Ellison = '67.3 billion dollars'
    Carlos_Slim_Helu = '61.8 billion dollars'
    Larry_Page = '57.9 billion dollars'
    Mukesh_Ambani = '57 billion dollars'

for line1, line2 in itertools.combinations(TopTenRichest, 2):
    name1 = line1.name
    name2 = line2.name
    res1 = line1.value.split(' ')
    result1 = decimal.Decimal(res1[0])
    res2 = line2.value.split(' ')
    result2 = decimal.Decimal(res2[0])
    richest = result1 - result2

    print(f'{name1} is {richest} billion dollars richer than {name2}')