Ten evenly spaced vertical lines in the plane are labeled \ell_{1}, \ell_{2}, \ldots, \ell_{10} from left to right. A set \{a, b, c, d\} of four distinct integers a, b, c, d \in\{1,2, \ldots, 10\} is squarish if some square has one vertex on each of the lines \ell_{a}, \ell_{b}, \ell_{c}, and \ell_{d}. Find the number of squarish sets.