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Pupil

yzqz

ftUjGNB2jB1vQgJTtlCQ, Nanjing, China
From NUIST
438 problems
solved for all time
8 problems
solved for the last year
0 problems
solved for the last month
9 days
in a row max.
2 days
in a row for the last year
0 days
in a row for the last month