What's the meaning of this number

Revision en2, by _Tyrue_, 2024-10-12 12:17:37

The number in the red box '- 22'

![](https://cdn.luogu.com.cn/upload/image_hosting/2ob96jlm.png)

History

 
 
 
 
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  Rev. Lang. By When Δ Comment
en3 English _Tyrue_ 2024-10-12 12:18:21 2 Tiny change: ' 22'\n\n![](https://cdn.luo' -> ' 22'\n\n![ ](http://cdn.luo'
en2 English _Tyrue_ 2024-10-12 12:17:37 67
en1 English _Tyrue_ 2024-10-12 12:16:29 69 Initial revision (published)