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9 Round Spiral. Round 1. Step 7.
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May 21, 2013 at 6:00 AM (UTC)
9 Round Spiral. Round 1. Step 7.
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May 21, 2013
Ended 12 years ago
Unknown
1
day
12
Problems
Start time
May 21, 2013 at 6:00 AM (UTC)
End time
May 22, 2013 at 6:00 AM (UTC)
Format
IOI, 12 problems, 1 day
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