문제 link
https://www.hackerrank.com/challenges/weather-observation-station-2/problem
Code link
https://github.com/JamesJung01/Hackerrank_sql/blob/main/01_Easy/Weather_Observation_Stations2.sql
SELECT ROUND(SUM(LAT_N),2), ROUND(SUM(LONG_W),2) FROM STATION;
