\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(0b) push +0(0b) dup geti retr dup push +3(2b) mod jzero null push +0(0b) puti mark +0(0b) push +10(4b) putc jump -0(0b) mark null dup jzero +0(0b) push +2(2b) puti push +3(2b) sub jump null