\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:
push +0(0b) dup geti retr mark null dup puti push +10(4b) putc dup push -2(2b) mod jneg +0(0b) push +2(2b) div jump null mark +0(0b) push +3(2b) mul push +1(1b) add dup push +4(3b) swap sub jneg null