\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) mark null dup dup getc retr swap push -32(6b) mod jneg null putc push +1(1b) jump null