C13223313311212111133133313331333133313233212121111331323231323121   >>    C1322331331121211113313331333133313331323321212111133132323132312   <<    C13223313311212111133133313331333133313233212121111331323231323123   >>      C13223313311212111133133313331333133313233212121111331323231323122   >>