C2221333133313331311233132313331333133313111112111133133311221123122311   >>    C222133313331333131123313231333133313331311111211113313331122112312231   <<    C2221333133313331311233132313331333133313111112111133133311221123122313   >>      C2221333133313331311233132313331333133313111112111133133311221123122312   >>