Acronym

An acronym is formed by taking the first letters of the words in a phrase and making a word from them. For example, RAM is an acronym for "random access memory."

Write a function convert(string) that takes a string as a parameter and then returns the acronym formed by the words in that string. Then write the program acronym.py that allows the user to type in a phrase, calls the convert() function for that string, and prints out the result.

Note: the acronym should be all uppercase, even if the words in the phrase are not capitalized.