Get maximum from aggregated values in a query

Question

I have a table details it has a column kills and a column player_slot and a column match_id. I want to find the maximum difference between the SUM of kills for player_slot 0-4 and 128-132. Can someone give me a hint?

Thats my table details:

id,
kills,
match_id,
player_id,
player_slot

Thats what I got so far, it's not much:

SELECT SUM(m."kills") AS max_kills
FROM details m
INNER JOIN matches ON matches.id = m.match_id
WHERE m.player_slot IN (0,1,2,3,4)
GROUP BY m."match_id"

SELECT SUM(m."kills") AS max_kills
FROM details m
INNER JOIN matches ON matches.id = m.match_id
WHERE m.player_slot IN (128,129,130,131,132)
GROUP BY m."match_id"