Dmytro Petrychenko(nice), Andrey Mis\'kov(nice), Nataliya Kolisnichenko(nice), Nikola Zmievskiy(nice), Natalia Honcharyk(interesting), Roman Yaremchuk(nice), Roman Yaremchuk(interesting), Family Kuzhel(nice), Family Kuzhel(interesting), Oleksandr Kovalchuk(interesting)