C2221333133313331311233132313331333133313331311233132322231123231   >>    C222133313331333131123313231333133313331333131123313232223112323   <<    C2221333133313331311233132313331333133313331311233132322231123233   >>      C2221333133313331311233132313331333133313331311233132322231123232   >>