The problems are designed by ParsaA (Parsa Abdollahi) and me. It's our first Codeforces round and we hope you enjoy competing it as much as we enjoyed preparing it! (^◡^)
Our special thank goes to JeBeK (Peyman Jabbarzade) who helped us a lot in preparing and testing the round. Many thanks to GlebsHP (Gleb Evstropov) for his help in preparing the contest, and MikeMirzayanov (Mike Mirzayanov) for great platforms Polygon and Codeforces. We also want to thank Zlobober (Max Akhmedov) for testing our round.
We wish (and expect!) you all many Accepted solutions! ( ﾟ▽ﾟ)/
UPD: Problems are going to be about Pari and Arya.
UPD2 Congratulations to the winners!
Editorial + some challenges will be published soon.
UPD3: The editorial is out!