C31232233133313221211113313331333133313331212111133112211232311311   >>    C3123223313331322121111331333133313331333121211113311221123231131   <<    C31232233133313221211113313331333133313331212111133112211232311313   >>      C31232233133313221211113313331333133313331212111133112211232311312   >>