Change Chernyshev 3.1 as he doesn't answer

Don't think he wanted to send 0 rows return query.

task3/Chernyshev_3_1.sql

@@ -16,6 +16,6 @@ INNER JOIN (
         name
 ) AS cnt
 ON
-    CONCAT_WS(' ', cc.first_nm, cc.last_nm, cc.middle_nm) = cnt.name
+    CONCAT_WS(' ', cc.last_nm, cc.first_nm, cc.middle_nm) = cnt.name
 WHERE
     cc.valid_to_dttm = '5999-01-01';