\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:
mark +0(1b) push +0(0b) dup geti retr call +0(0b) push +10(4b) putc jump +0(1b) mark +0(0b) push -1(1b) call null dup push +2(2b) div dup jzero -0(0b) call +0(0b) mark -0(0b) swap push -2(2b) mod dup jzero null call null push +0(0b) dup call null mark null push +41(6b) add putc ret