Two customers each bought a new car at Juan Diaz Autoplex. When the first customer left the dealership he drove west on Sunshire Boulevard for 6 miles and then turned left and drove for another 16 miles to get to his house. When the second customer left the dealership she drove east on Sunshire Boulevard for 4 miles and then turned left and drove for another 8 miles to get to her house. How far apart do the customers live?