For the future mathematicians, we can't answer. Sorry to trouble you, but please answer yourself. Find out what to do on the net.

Please send the answers for the basic, standard, and difficult problem in a common form or by e-mail. Please fill in the your answering section, the answer to the question, and the name of the ranking.

However, please do not use names that are deemed inappropriate, such as correct answers to problem that are being asked. If there is something like this, the answer will be invalid.

You do not have to write your email address.

If you would like to put a link to the website or email on the standings, please include the URL / email address. However, links will not be posted for sites that are determined to be invalid.

You can resubmit your answer as many times as you like. However, you can send one answer per email form. If multiple answers are written on one mail form, the answer will be invalid.

You don't have to add units to your answer.