C13223313311212111133133313331333133313232233133313311221231111   >>    C1322331331121211113313331333133313331323223313331331122123111   <<    C13223313311212111133133313331333133313232233133313311221231113   >>      C13223313311212111133133313331333133313232233133313311221231112   >>