C2221333133313331311233132313331333133313331333133313331311331322221   >>    C222133313331333131123313231333133313331333133313331333131133132222   <<    C2221333133313331311233132313331333133313331333133313331311331322223   >>      C2221333133313331311233132313331333133313331333133313331311331322222   >>