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N Country Participants
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3 Russia 12638
4 Bangladesh 10708
5 Egypt 5408
6 Vietnam 3660
7 Iran 2881
8 United States of America 2633
9 Ukraine 2432
10 Japan 2350
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number
1
ruban
830
2
PAG
724
3
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6
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158 days Codeforces Global Rounds 2021