Score: 200 points
Input: A text file with coordinates.
How to solve:
We put these coordinates in Google Maps in the form of (longitude, latitude). We observe that we get a city for each coordinate pair.
Below we see the cities we found with the corresponding coordinates (starting from the first coordinate in the input file):
Kyoto, Japan
Odessa, Ukraine
Dayton, United States
Istanbul, Turkey
Abu Dhabi, United Arab Emirates
Kuala Lumpur, Malaysia
_
Addis Ababa, Ethiophia
Loja, Ecuador
Amsterdam, Netherlands
Sleepy Hollow, United States
Kodiak, United States
Alexandria, Egypt
Flag Format: picoCTF{}
Flag: The first letter of each city gives us a pair of CITY_STATE
Answer: picoCTF{KODIAK_ALASKA}