C13223313311212111133133313331333133313232233133313331323221131222121   >>    C1322331331121211113313331333133313331323223313331333132322113122212   <<    C13223313311212111133133313331333133313232233133313331323221131222123   >>      C13223313311212111133133313331333133313232233133313331323221131222122   >>