Andrey Mis\'kov(nice), Oleg Sheremet(nice), Nataliya Kolisnichenko(nice), Nataliya Kolisnichenko(interesting), A. Zhuravel(nice), Dmytro Petrychenko(nice), Dmytro Petrychenko(interesting), Alexender Zabolotnyy(nice), Vitalii Kazannyk(nice), Natalia Honcharyk(nice), Natalia Honcharyk(interesting), Vsevolod Olenich(nice), Nikola Zmievskiy(nice), Family Kuzhel(nice), Kirill Konopitsyn(nice), Kirill Konopitsyn(interesting), Yuriy Kodrul(nice), Yuriy Kodrul(interesting), Yakov Stepanov(nice), Yakov Stepanov(interesting), Oleh Snitsar(nice), Kostiantyn Pylypiuk(nice), Kostiantyn Pylypiuk(interesting), Oleksandr Kovalchuk(nice), Oleksandr Kovalchuk(interesting), Irina Ortik(nice), Vasil Bodnar(nice), Vasil Bodnar(interesting)