We thoroughly pursued comfort, speed, and quality of problems.
High-dimensional fusion of simple design and full options,
The problem is created by completely original logic, replacing numbers,
No deception such as rotation is performed.
With the above logic as a guideline, the number of numbers opened initially is 25 or less.
creating a problem.
We have prepared 4,444 high-quality questions from the beginning, and we plan to distribute them.