\x09 \x09 \x09\x09\x09 \x09 \x09 \x09 \x09 \x09\x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09\x09 \x09 \x09 \x09\x09 \x09\x09\x09 \x09\x09 \x09 \x09\x09 \x09 \x09 \x09\x09\x09 \x09
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
Disassemble:
mark null push +0(0b) dup getc retr dup push +65(7b) sub jneg +0(0b) push +32(6b) swap copy +1(1b) div mul push +1(1b) add dup push +13(4b) mod push +0(0b) retr swap sub push +26(5b) mod add mark +0(0b) putc jump null