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PKU v. THU (Preliminary Round 2)
Time Limit: 2 s
Memory Limit: 256 MB
# 128. Casino
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The problem was used in the following contest:
Petrozavodsk Summer 2015. Day 1. Japanese Contest
Izhevsk Mirror of Petrozavodsk Summer Training Camp 2015. Day 6, The Rector Cup: Japanese Contest
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