what is season 6 sum of both the number of times processing ID 2397162 was assigned and the number of times chip chalmers managed an episode 
CREATE TABLE "season_6_1997_1998" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "director" text,
  "writer_s" text,
  "original_air_date" text,
  "production_code" text
);
SELECT MAX("no_in_season") FROM "season_6_1997_1998" WHERE "director"='Chip Chalmers' AND "production_code"='2397162';