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Hack!
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Time Limit: 1 s
Memory Limit: 2048 MB
# 1370. Magic Trick
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描述
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自定义测试
The problem was used in the following contest:
2020-2021 ICPC North America - Pacific Northwest Regional Contest - Division 2
2020-2021 ICPC North America - Southeast USA Regional
2020-2021 ICPC North America - South Central USA Regional
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