C2221333133313331311233132313331333133313331311233132233132213231322221   >>    C222133313331333131123313231333133313331333131123313223313221323132222   <<    C2221333133313331311233132313331333133313331311233132233132213231322223   >>      C2221333133313331311233132313331333133313331311233132233132213231322222   >>