In Moscow , metro riders can trade 30 squats for a free ticket . Comment: If they do n't do all 30 , they have to pay up . The ticket would cost the equivalent of about 92 cents .
In Moscow , metro riders can trade 30 squats for a free ticket . Machine registers their movements . If they do n't do all 30 , they have to pay up . The ticket would cost the equivalent of about 92 cents .