\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 null push +5(3b) dup dup dup dup getc retr dup putc sub mod jneg null geti jump null