Using loops in python define a function fewest_characters_rightmost that takes a single argument, a list of strings, and returns the string that contains the fewest characters. In the case of a tie, return the rightmost string with the fewest characters. If the list is empty, return the empty string.

Examples:

>>> fewest_characters_rightmost(["Arizona", "California", "Texas", "Utah"])

'Utah'

>>> fewest_characters_rightmost(["Pear", "Apples", "Oranges","Taro"])

'Taro'