I.I. Vasilyeva1, O.V. Druzhinina2, O.N. Masina3

1, 3 I.A. Bunin Yelets State University (Yelets, Russia)
2 FRС «Computer Science and Control» of Russian Academy of Sciences (Moscow, Russia)
1 irinavsl@yandex.ru, 2 ovdruzh@mail.ru, 3olga121@inbox.ru