C31232233133313221211113313331333133313331212111133131133131122213121221   >>    C3123223313331322121111331333133313331333121211113313113313112221312122   <<    C31232233133313221211113313331333133313331212111133131133131122213121223   >>      C31232233133313221211113313331333133313331212111133131133131122213121222   >>