$current_user_id = 0$result_user_id = 9448$username = guest_FPrzTf guest_FPrzTf
Пользователь только начал прохдение
Your ID: -5323
Follow the updates – the winners ranking will be available on the website by November 17.
What a start! Yet so many new things in the world of nuclear science and technologies to discover. Start with a physics book and keep learning!
That’s better than 100% of other participants!