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haohao2k5

Hao Nguyen, Hanoi, Vietnam
From PTIT
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  • Last visit: 5 weeks ago
  • Registered: 9 months ago
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7 problems
solved for all time
7 problems
solved for the last year
0 problems
solved for the last month
3 days
in a row max.
3 days
in a row for the last year
0 days
in a row for the last month