What character(s) does a bitstring is encoded in each character set?

Bitstring:
Binary  Hexadecimal 
EncodingBitstringCharacter(s)
ISO-8859-1819e3f3f3f3f8d75ž????u
SJIS-WIN819e3f3f3f3f8d75◇????講
EUC-JP819e3f3f3f3f8d75???????u
UTF-8819e3f3f3f3f8d75???????u
UHC819e3f3f3f3f8d75걻????뛳