Write the required functions and script that prompts the user for the names of two files: a file representing the marriage preferences of a sequence of men, and a file representing the marriage preferences of a sequence of women; reads these files (storing this information in special data structures: dictionaries storing preference as lists); prints the dictionary/preferences of the men and women in a special form; runs the Gale/Shapley algorithm for finding a stable marriage (tracing its progress, if required); prints the stable marriage as a set of man/woman tuples.