Great scientist invents a time machine, and has already managed to take advantage of it. But he did not expect that it would work, and it would be in the distant vosemdesyat sixth year, when computer technology only began to develop. Urgently need to help our hero find a way out of this complicated situation, and help him get out of the past. But always remember that you have only forty-five minutes, and then turn off the time machine from overheating. So use all your logic and then you will be able to win, good luck.