\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 \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 +58(6b) dup getc retr dup dup dup retr push +1(1b) add stor push +10(4b) swap sub jneg null mark +0(0b) copy +50(6b) dup jzero null push +9(4b) sub mark -0(0b) push +1(1b) add dup retr jzero -0(0b) dup dup retr push +1(1b) sub stor putc push +0(0b) jump +0(0b)