VIA PSFK :
As part of its campaign to promote the upcoming Winter Olympic Games, which opens in February 2014, and promote a healthier lifestyle, city officials are offering free subway rides in exchange for 30 squats. A single ride costs 30 rubles, thus the 30 squats.
To get their free tickets, passengers have two minutes to do the squats in front of a vending machine designed to count the squats. The special machine bears the Olympics logo and is placed next to the standard electronic vending machines at the subway station.