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

Bitstring:
Binary  Hexadecimal 
EncodingBitstringCharacter(s)
ISO-8859-13f3f3f3f81913f783f3f3f????‘?x???
SJIS-WIN3f3f3f3f81913f783f3f3f????¢?x???
EUC-JP3f3f3f3f81913f783f3f3f???????x???
UTF-83f3f3f3f81913f783f3f3f???????x???
UHC3f3f3f3f81913f783f3f3f????걨?x???