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根据传统，WF2025的官方中文直播将由青鱼为大家呈上。
Time Limit:
3.0 s
Memory Limit:
1024 MB
Total points:
100
Difficulty:
[show]
Hackable ✓
#14025. Bot Friends 2
Statistics
The problem was used in the following contests:
This problem is prepared by
kubic and qingyu .