\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 dup push +1(1b) sub jzero +0(0b) push +10(4b) putc push +3(2b) mul push +1(1b) add dup push -2(2b) mod jzero null push +6(3b) div jump null