C2221333133313331311233132313331333133313331311233132323311331211   >>    C222133313331333131123313231333133313331333131123313232331133121   <<    C2221333133313331311233132313331333133313331311233132323311331213   >>      C2221333133313331311233132313331333133313331311233132323311331212   >>