Sergo Travelian(nice), Vsevolod Olenich(nice), Andrey Mis\'kov(nice), Oleg Sheremet(nice), Nataliya Kolisnichenko(nice), Nikola Zmievskiy(nice), Natalia Honcharyk(nice), Natalia Honcharyk(interesting), Inna Kyselova(nice), Family Kuzhel(nice), Vitaliy Mosienko(nice), Yakov Stepanov(nice), Irina Ortik(nice), Vasil Bodnar(nice)