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

Bitstring:
Binary  Hexadecimal 
EncodingBitstringCharacter(s)
ISO-8859-1817e3f3f403f3f~??@??
SJIS-WIN817e3f3f403f3f×??@??
EUC-JP817e3f3f403f3f?~??@??
UTF-8817e3f3f403f3f?~??@??
UHC817e3f3f403f3f???@??