When the members of a family discussed where their annual reunion should take place, they found that out of all the family members, 11 would not go to a park, 10 would not go to a beach, 13 would not go to the family cottage, 7 would go to neither a park nor a beach, 6 would go to neither a beach nor the family cottage, 8 would go to neither a park nor the family cottage, 5 would not go to a park or a beach or to the family cottage, and 2 would go to all three places. what is the total number of family members?