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.

2F EB EE 2D 48 23 93 3B 50 23 93 B9 EB EE 1E 0A
80 72 C0 B9 1E 80 EB EE 81 80 52 23 1E 80 C0 23
48 9D 81 48 99 80 0F 3B 93 80 69 EB 3B 80 2D EB
93 80 B9 93 0A 80 B7 81 48 69 80 52 81 50 50 80
9D EB EE 81 80 D4 81 50 50 EB 52 80 C0 23 56 43
81 48 0A 80 72 C0 81 80 F7 48 EB 0F 50 81 09 80
52 B9 93 C0 80 93 C0 B9 1E 80 56 B9 F7 C0 81 48
80 B9 1E 80 93 C0 23 93 80 93 C0 81 80 43 81 69
80 B9 1E 80 F7 48 81 93 93 69 80 50 EB EE 2D 0A
80 4E 80 52 B9 50 50 80 56 EB 09 81 80 3B F7 80
52 B9 93 C0 80 23 80 0F 81 93 93 81 48 80 81 EE
56 48 69 F7 93 B9 EB EE 80 1E C0 81 09 81 80 23
EE 69 80 1E EB EB EE 0A 80 0C EB 3B 48 80 1E EB
50 3B 93 B9 EB EE 80 B9 1E 3F 80 23 F7 9D 50 48
81 48 B9 23 EE C0 C0 0A