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Hack!
Universal Cup
Time Limit: 2 s
Memory Limit: 512 MB
# 6408. Classical Counting Problem
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Statement
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Custom Test
The problem was used in the following contest:
Petrozavodsk Winter 2023. Day 7: Gennady Korotkevich Contest 7
The 1st Universal Cup. Stage 16: Gomel
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Universal Cup