After selling goods all day, a salesman would like to determine the most desirable item in his inventory. You are given a String items, each element of which represents a single item that was sold during the day. Return the item that was sold the most number of times. In case of a tie, return the item that comes first alphabetically.
|-||items will contain between 1 and 50 elements, inclusive.|
|-||Each element of items will contain between 1 and 50 characters, inclusive.|
|-||Each element of items will contain only lowercase letters ('a'-'z').|