\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 +289(9b) mark +0(0b) push +1(1b) add dup dup getc retr push +10(4b) swap sub jneg +0(0b) dup push +2(2b) sub retr push +3(2b) mul retr putc retr putc jump null