JUMP     start

r123:
COPYFROM 1
OUTBOX
COPYFROM 2
OUTBOX
COPYFROM 3
OUTBOX
JUMP     start

r321:
COPYFROM 3
OUTBOX
COPYFROM 2
OUTBOX
COPYFROM 1
OUTBOX

start:
INBOX
COPYTO   1
INBOX
COPYTO   3
SUB      1
JUMPN    right
INBOX
COPYTO   2
SUB      1
JUMPN    left2
ADD      1
SUB      3
JUMPN    r123
COPYFROM 1
OUTBOX
COPYFROM 3
OUTBOX
COPYFROM 2
OUTBOX
JUMP     start

right:
INBOX
COPYTO   2
SUB      3
JUMPN    right2
ADD      3
SUB      1
JUMPN    r321
COPYFROM 3
OUTBOX
COPYFROM 1
OUTBOX
COPYFROM 2
OUTBOX
JUMP     start

right2:
ADD      3
OUTBOX
COPYFROM 3
OUTBOX
COPYFROM 1
OUTBOX
JUMP     start

left2:
ADD      1
OUTBOX
COPYFROM 1
OUTBOX
COPYFROM 3
OUTBOX
JUMP     start