Oleg Sheremet(nice), Sergo Travelian(nice), Dmytro Petrychenko(nice), Kostiantyn Pylypiuk(nice), Olga Gajduk(nice), Andrey Mis\'kov(nice), Nataliya Kolisnichenko(nice), Family Kuzhel(nice), Kirill Konopitsyn(nice), Kirill Konopitsyn(interesting), Irina Ortik(nice), Yakov Stepanov(nice), Denys Shandar(nice)