choi allen
@cyl001
China, guangzhou
Joined Feb 2022
World Rank: #11944 (2.9 points)
Institution: shengshi guangdong
I am only just a student. I am tnterested in OI
China, guangzhou
Joined Feb 2022
World Rank: #11944 (2.9 points)
Institution: shengshi guangdong
I am only just a student. I am tnterested in OI