V.M. Fomichev – Dr.Sc.(Phys.-Math.), Professor, Leading Research Scientist, 

Institute of Informatics Problems of FRC CSC RAS (Moscow); 

Professor, Financial University under the Government of the Russian Federation

E-mail: fomichev.2016@yandex.ru

I.V. Semibratov – Student, 

Financial University under the Government of the Russian Federation E-mail: semibratovilya@gmail.com