II
You don't, because "hello kitty" is two words, while numerals are NUMBERS.
You cannot spell Lillian with Roman Numerals because there are no numerals that could be used to make an "A". The Roman Numerals are: I, V, X, L, C, D, M.
In Roman numerals 13 is XIII.
11 is XI in Roman numerals.
The number 30 is XXX in Roman numerals, as each X equals 10.
Louis 15th in Roman numerals is spelled as "XV".
Two in Roman numerals is II (two capital i's).
Forty two in Roman numerals is written as XLII.
The year 2015 is MMXV
Ww i, wwii
Rome is not traditionally spelled out using Roman numerals. Roman numerals are used to represent numbers in ancient Rome, not for spelling out words.
How about VI = 6 in Roman numerals