Hello, Codeforces! I have prepared a mashup for newbies (like me) at 13:00 and you are strongly encouraged to participate. There will be 9 problems and 4 hours to solve (no subtask). Thanks to carcinisation for guiding me. Remember that this is not official. Click on this link to participate:

https://codeforces.me/contestInvitation/217603d3dfb169b9299b185d13d1baec977a005d

GLHF!