C31232233133313221211113313331333132313331322121111113313231311211222121   >>    C3123223313331322121111331333133313231333132212111111331323131121122212   <<    C31232233133313221211113313331333132313331322121111113313231311211222123   >>      C31232233133313221211113313331333132313331322121111113313231311211222122   >>