\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 +123(7b) mod push +97(7b) div push +32(6b) mul sub putc jump null