Oleg Sheremet(nice), Nataliya Kolisnichenko(nice), Andrey Mis\'kov(nice), Dmytro Petrychenko(nice), Vsevolod Olenich(nice), Natalia Honcharyk(nice), Family Kuzhel(nice), Kirill Konopitsyn(nice), Irina Ortik(nice), Yakov Stepanov(nice), Yakov Stepanov(interesting)