it is said that people with rating between 0 and 2099 could participate in div 2 contests.
but $$$\color{gold}{\text{K}}\text{ing}$$$ s can also join the contest.
it seems that Mike built a small bug, and pls fix it
i think $$$\color{gold}{\text{K}}\text{ing}$$$ s could only join div 5 contests.
What is div. 5 contest?
A imaginary question can be:
given an integer A and an integer B, output the sum of A and B in mod infinite
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