(SELECT 4853 FROM(SELECT COUNT(*),CONCAT(0x716b786b71,(SELECT (ELT(4853=4853,1))),0x716a787071,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.CHARACTER_SETS GROUP BY x)a)

(SELECT 4853 FROM(SELECT COUNT(*),CONCAT(0x716b786b71,(SELECT (ELT(4853=4853,1))),0x716a787071,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.CHARACTER_SETS GROUP BY x)a) Ningguang x Amber