Nataliya Kolisnichenko(nice), Nikola Zmievskiy(nice), Natalia Honcharyk(nice), Vitalii Kazannyk(nice), Kostiantyn Pylypiuk(nice), Kostiantyn Pylypiuk(important), Sergo Travelian(nice), Sergo Travelian(important), Sergo Travelian(interesting), Vsevolod Olenich(important), Vsevolod Olenich(nice), Andrey Mis\'kov(nice), Yevgen Chernolyev(nice), Kirill Konopitsyn(nice), Kirill Konopitsyn(interesting), Irina Ortik(nice), Vasil Bodnar(interesting), Yakov Stepanov(nice), Yakov Stepanov(important), Yakov Stepanov(interesting)