\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:
push +78(7b) push +4(3b) stor push +30(5b) push -20(5b) stor push +90(7b) dup push +0(0b) stor mark null dup retr copy +1(1b) dup getc retr add putc push +1(1b) sub dup jneg +0(0b) jump null