\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 +0(0b) dup getc retr dup push +10(4b) sub jzero -0(0b) push +0(0b) puti jump +0(0b) mark -0(0b) putc mark +0(0b) jump null