User information
| Full name | Zholtkevych Grygoriy Mikolayovich |  |
| Username | brainhack | |
| Date of Birth | 01/01/1950 | |
| Team | BrainHack | |
| Educational Institution | Kharkiv National University named after V.N.Karazin, Kharkiv, Ukraine | |
| Faculty | Механіко-математичний | |