\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 +0(0b) mark null push +0(0b) dup getc retr dup push +31(5b) sub dup jneg +0(0b) copy +2(2b) swap mod push +2(2b) div push +11(4b) mul add swap mark +0(0b) swap putc push +1(1b) add jump null