ithink 999
999
bar(bar(CMXCIX)CMXCIX)CMXCIX
CMXCIX.999 = CMXCIX
999,999 would be written as (CMXCIX)CMXCIX
999
CMXCIX
CMXCIX
999 = CMXCIX
'CM' = 100 from 1,000 = 900 'XC' = 10 from 100 = 90 'IX' = 1 from 10 = 9 'CMXCIX' = 999
(xxix)cmxcix
(IX)CMXCIX
999 = CMXCIX