Prizes:
1st stage (10.09.2013) ===> Smartphone (iPhone 5 64Gb or Samsung Galaxy 4 or BlackBerry Q10)
2d stage (10.12.2013) ===> Tablet (iPad 4 64Gb Wi Fi + Cellular or Samsung Galaxy Note 10.1 N8000 64Gb or BlackBerry PlayBook 64Gb)
3d stage (10.03.2014) ===> Laptop (MacBook Pro (Retina, 15 inch, Early 2013) or ASUS G75VX or Sony VAIO SVS1512Z9R)
(the last fourth stage 10.06.2014) ===> And, of course, the main prize a Mercedes Benz S 400 Hybrid
The winners will be drawn at random