C13223313311212111133133313331333133313232233133313311221231131211   >>    C1322331331121211113313331333133313331323223313331331122123113121   <<    C13223313311212111133133313331333133313232233133313311221231131213   >>      C13223313311212111133133313331333133313232233133313311221231131212   >>