https://www.hackerrank.com/challenges/weather-observation-station-13/problem
Query the sum of Northern Latitudes (LAT_N) from STATION having values greater than 38.7880 and less than 137.2345. Truncate your answer to 4 decimal places.
Input Format
The STATION table is described as follows:
LAT_N이 38.7880 보다 크고 137.2345 보다 작은 수들의 합을 구하고 소수점 4째짜리 까지 표현하는 문제
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