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PKU v. THU (Preliminary Round 2)
Time Limit: 4.0 s
Memory Limit: 512 MB
# 6798. String Theory
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The problem was used in the following contest:
Moscow Pre-Finals Workshop 2020. Day 5: Legilimens + Coffee Chicken Contest
XX Open Cup named after E.V. Pankratiev, Grand Prix of Nanjing
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