Point: 100.0
Time limit: 1.0s
Memory limit: 64 M
Input: stdin
Output: stdout
Author:  
Problem type
Ngôn ngữ cho phép
C, C#, C++, Java, Pascal, Python, Text

https://drive.google.com/file/d/18_Amzsb-2EAJe-6NSomKXDrWqw049yUO/preview