There are no Roman numerals which are represented by the letters Y, E or S.
"120" in Roman numerals is "CXX".
Those Roman Numerals mean 1991.
it means 1,150 in roman numerals
988 = CMLXXXVIII in Roman numerals
Not a valid sequence for Roman numerals
There is no O and E in Roman Numerals.
It does not mean anything because it is an invalid arrangement of Roman numerals
"D" in Roman Numerals equals 500.
In Roman numerals, it means N M C.
Roman numerals don't have a 0 symbol and so it is an invalid arrangement of Roman numerals
1837 is the equivalent of MDCCCXXXVII in Roman numerals