C2221333133313331311233132313331333133313111112111133133313221331121221   >>    C222133313331333131123313231333133313331311111211113313331322133112122   <<    C2221333133313331311233132313331333133313111112111133133313221331121223   >>      C2221333133313331311233132313331333133313111112111133133313221331121222   >>