C13223313311212111133133313331333133313232233133313121111331331121223211321211   >>    C1322331331121211113313331333133313331323223313331312111133133112122321132121   <<    C13223313311212111133133313331333133313232233133313121111331331121223211321213   >>      C13223313311212111133133313331333133313232233133313121111331331121223211321212   >>