C2221333133313331311233132313331333133313331311233132313233313221   >>    C222133313331333131123313231333133313331333131123313231323331322   <<    C2221333133313331311233132313331333133313331311233132313233313223   >>      C2221333133313331311233132313331333133313331311233132313233313222   >>