ragged 14 and I got about middle which is which something as simple as that the last competition I will talk about is a recommendation system to or to music so the problem is the following we have a user who is listening to some song but sometimes type t1 and we want to predict if the same user went to read listen to the same song at some time same cheap g2 and t2 minus t1 is less than one mouth so we are trying to predict if there is any releasing of the Sun for each user we have some statistic here but the