\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:
push +0(0b) dup geti mark null push +1(1b) sub dup dup mark +0(0b) push +42(6b) putc push +1(1b) add dup jneg +0(0b) push +10(4b) putc retr add jzero -0(0b) jump null