C2221333133313331311233132313331333133313331311233132322231313221   >>    C222133313331333131123313231333133313331333131123313232223131322   <<    C2221333133313331311233132313331333133313331311233132322231313223   >>      C2221333133313331311233132313331333133313331311233132322231313222   >>