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Hack!
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PKU v. THU (Preliminary Round 2)
Time Limit: 1 s
Memory Limit: 256 MB
# 5062. Square
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The problem was used in the following contest:
The 2020 ICPC Asia East Continent Final Contest (EC-Final 2020)
XXI Open Cup named after E.V. Pankratiev, Grand Prix of Xi'an
Moscow Pre-Finals Workshops 2021 Day 5
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