Oksana Makhovska(nice), Oleg Sheremet(nice), Sergo Travelian(nice), Ihor Vietokhin(nice), Dmytro Petrychenko(nice), Denys Shandar(nice), Denys Shandar(interesting), Andrey Mis\'kov(nice), Andrii tntr(nice), Andrii tntr(interesting), Irina Ortik(nice), Vasily Stashiba(nice)