O.V. Druzhinina1, V.L. Vorontsova2, D.S. Zaitsev3, M.A. Kabanov4, A.A. Shmelkova5
1 Federal Research Center «Computer Science and Control» of Russian Academy of Sciences (Moscow, Russia)
2 Kazan Federal University (Verkhnyaya Pyshma, Russia)
3,4 Bunin Yelets State University (Yelets, Russia)
