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Hack!
Time Limit: 1.0 s
Memory Limit: 1024 MB
Hackable ✓
# 7894. Many Many Heads
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Custom Test
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The problem was used in the following contest:
The 2nd Universal Cup. Stage 17: Jinan
The 2023 ICPC Asia Jinan Regional Contest
This problem is prepared by
Qingyu
.
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