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PKU v. THU (Preliminary Round 2)
Time Limit: 6 s
Memory Limit: 512 MB
Hackable ✓
# 7419. Jiry Matchings
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The problem was used in the following contest:
Petrozavodsk Summer 2019. Day 2. 300iq Contest 2, Grand Prix of Kazan
XX Open Cup named after E.V. Pankratiev, Grand Prix of Kazan
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