C13223313311212111133133313331333133313232233133313331333213231211   >>    C1322331331121211113313331333133313331323223313331333133321323121   <<    C13223313311212111133133313331333133313232233133313331333213231213   >>      C13223313311212111133133313331333133313232233133313331333213231212   >>