Sergo Travelian(nice), Oleg Sheremet(nice), Natalia Honcharyk(nice), Natalia Honcharyk(interesting), Andrey Mis\'kov(nice), Alexander Cherinko(interesting), Kostiantyn Pylypiuk(nice), Yevgen Chernolyev(nice), Yevgen Chernolyev(interesting), Dmytro Petrychenko(nice), Dmytro Petrychenko(interesting), Roman Yaremchuk(interesting), Irina Ortik(nice), Alex Komarovskiy(interesting), Alex Komarovskiy(important), Alex Komarovskiy(nice), Yakov Stepanov(nice), Yakov Stepanov(interesting), Yakov Stepanov(important)