“My name is Katerina,” Katerina said. “Hello, Kat,” they greeted her. “Not Kat, but Katerina,” said Katerina. Lyudmila followed the reaction of the guests with some concern. - Then, perhaps, Catherine, so that it is quite officially, folk and according to the rules? the long -haired guy asked her. - If according to the rules, then Katerina. So I have written in my passport.