As of invention patent, hereof represented by an inventive solution under the represented management concessionary sector for the distribution, commercialization of electricity, pipelined gas and water, internet and cable TV subscription services is provided. The content of nitrogen solid solute in the carbonitridation product increases from the interior to the surface of the sintered material, and the Vickers hardness at the surface of the sintered material is 19. Gaze direction or operator commands may be communicated using a haptic device. Further, the method includes operations for detecting that the second player has performed a game operation to help the first player based on the petition, and for determining a second game asset that the second player needs for making progress in the game in response to the game operation to help.