C31232233133313221211113313331333132313331322121111123121111121111121312121   >>    C3123223313331322121111331333133313231333132212111112312111112111112131212   <<    C31232233133313221211113313331333132313331322121111123121111121111121312123   >>      C31232233133313221211113313331333132313331322121111123121111121111121312122   >>