\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(1b) dup getc retr dup push +10(4b) sub jzero +0(0b) putc jump +0(0b)