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

Bitstring:
Binary  Hexadecimal 
EncodingBitstringCharacter(s)
ISO-8859-13f3f3f3f656b????ek
SJIS-WIN3f3f3f3f656b????ek
EUC-JP3f3f3f3f656b????ek
UTF-83f3f3f3f656b????ek
UHC3f3f3f3f656b????ek