Oleg Sheremet(nice), Sergo Travelian(nice), Vsevolod Olenich(nice), Kostiantyn Pylypiuk(nice), Natalia Honcharyk(nice), Nataliya Kolisnichenko(nice), Vlad Gedziuk(nice), Andrey Mis\'kov(nice), Irina Ortik(nice), Family Kuzhel(nice), Vitaliy Mosienko(nice), A. Zhuravel(nice), Vasil Bodnar(nice), Vasil Bodnar(interesting), Yakov Stepanov(nice), Yakov Stepanov(interesting)