Quite amazing, but I dont really belive they did it this way, running around that building. Ive seen a simmilar thing in Poland when the students from Polands lit different words animated like on a LED screen, only they used a computer which controlled the lights in the rooms. If those Russian students managed to turn the lights on and of in different rooms on different floors so simultanelously,
![English Russia » House Tetris](https://cdn-ak-scissors.b.st-hatena.com/image/square/12ac58c7f906384c78c55a3fd222eefd745f16f8/height=288;version=1;width=512/https%3A%2F%2Fenglishrussia.com%2Fwp-content%2Fuploads%2F2007%2F07%2Ftetris.png)