Time limit: 60 minutes. This is an individual contest.
Target: This contest is at a basic level designed for junior high and high school students, but anyone is welcome to participate (including university students and adults).
OK to use: Calculators, scratch paper.
Not allowed: AI tools, Web search, Textbooks, or talking with others.
Cheating will make your score invalid.
Note: The calculations are complex. Please use a calculator.