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Hack!
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PKU v. THU (Finals)
Time Limit: 5 s
Memory Limit: 1024 MB
Hackable ✓
# 6555. Sets May Be Good
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Statement
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Custom Test
The problem was used in the following contest:
The 2nd Universal Cup. Stage 5: Northern
Petrozavodsk Winter 2023. Day 5: LOUD Enough Contest 2
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