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Hack!
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PKU v. THU (Preliminary Round 2)
Time Limit: 3 s
Memory Limit: 512 MB
# 4002. Easy Fix
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The problem was used in the following contest:
Moscow Pre-Finals Workshops 2022 Day 5
XXII Open Cup named after E.V. Pankratiev, Grand Prix of Yuquan
This problem is prepared by
lcd
.
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