\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 \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 +10(4b) dup dup geti retr call null pop putc jump +0(1b) mark null push +40(6b) putc dup push +2(2b) mod swap push +2(2b) div dup jzero +0(0b) call null mark +0(0b) swap jzero -0(0b) push +40(6b) putc push +41(6b) putc mark -0(0b) push +41(6b) putc ret