I have created an advanced version of the simple substitution cipher.
It can now use chars in range from 0-255, but that should not stop you.
The ciphertext is in the language of this text, and uses correct punctuation and case-sensitivity.

23 82 A5 CB DC 64 42 37 49 64 42 A4 82 A5 A9 75
C8 7A 4E A4 A9 C8 82 A5 92 C8 9B 64 A9 C8 4E 64
DC 91 92 DC 8A C8 C3 37 42 C8 7B 82 37 C8 CB 82
42 C8 A4 42 75 C8 34 92 DC 7B C8 9B 92 49 49 C8
91 82 A5 92 C8 15 92 49 49 82 9B C8 4E 64 11 9A
92 DC 75 C8 7A 4E 92 C8 68 DC 82 C3 49 92 39 C8
9B A4 42 4E C8 42 4E A4 A9 C8 11 A4 68 4E 92 DC
C8 A4 A9 C8 42 4E 64 42 C8 42 4E 92 C8 9A 92 7B
C8 A4 A9 C8 68 DC 92 42 42 7B C8 49 82 A5 CB 75
C8 2F C8 9B A4 49 49 C8 11 82 39 92 C8 37 68 C8
9B A4 42 4E C8 64 C8 C3 92 42 42 92 DC C8 92 A5
11 DC 7B 68 42 A4 82 A5 C8 A9 4E 92 39 92 C8 64
A5 7B C8 A9 82 82 A5 75 C8 31 82 37 DC C8 A9 82
49 37 42 A4 82 A5 C8 A4 A9 51 C8 82 4E CB 64 91
DC A4 DC 92 68 A9 CB 75