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Hack!
Time Limit: 1.0 s
Memory Limit: 512 MB
Hackable ✓
# 7127. 3 points
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Statement
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Custom Test
The problem was used in the following contest:
ICPCCamp 2015. Day 1. Xiaoxu Guo Contest 3
Petrozavodsk Winter 2015. Day 1. Xiaoxu Guo Contest 3
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