1. Write function modify String(origString, charsToReplace, count) that takes as input a string origString, a string charsToReplace, and a positive integer count, and returns a new string such that each character in origString that occurs in charsToReplace is replaced by n consecutive copies of that character (with the same case as in the original). For example, >>> modifyString("Our cat is funny.", "aeiou", 5) '00000uuuuur caaaaat iiiiis fuuuuunny.' >>> modifyString("Our cat is funny.", "zu", 3) 'Ouuur cat is fuuunny