BC20270021
UID: 2012, Registered at 2024-9-3 10:02:54, last login at 2025-10-9 14:24:36, last active at 2025-10-9 15:22:29.
Solved 0 problems, RP: 0 (No. ?)
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Bio
jdjshsh(OGC) WELCOME!!!
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Recent Activities
This person is lazy and didn't join any contests or homework.