Decisions, Decisions

Sitting down with the conference schedule to plan my itinerary.  Bill Klimack, VP for Meetings, told me that this year there would be something for everyone, and boy, was he right!  On Monday, there are 11 tracks and on Tuesday there are 12 tracks. Each track has five talks; that’s 115 presentations.  If you wanted to see everything at the conference, it would take you 23 days!  My problem is that there are a number of talks I want to attend, but they are scheduled at the same time. I need to compare each possible conference itinerary with all the others to see which one I like the best. Does anyone know how many possible itineraries there are?