C13223313311212111133133313331333132333133313331333133112121111132212121   >>    C1322331331121211113313331333133313233313331333133313311212111113221212   <<    C13223313311212111133133313331333132333133313331333133112121111132212123   >>      C13223313311212111133133313331333132333133313331333133112121111132212122   >>