C31232233133313221211113313331333132313331322121111121111331222323121   >>    C3123223313331322121111331333133313231333132212111112111133122232312   <<    C31232233133313221211113313331333132313331322121111121111331222323123   >>      C31232233133313221211113313331333132313331322121111121111331222323122   >>