\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 -0(0b) push +0(0b) mark null dup push +9(4b) dup getc retr dup copy +2(2b) retr sub jneg +0(0b) stor dup mark +0(0b) pop dup retr dup putc push +10(4b) sub jzero -0(0b) push +1(1b) add jump null