python-Solve the following Leetcode problem https://leetcode.com/problems/shuffle-string/ use following string functions that we have not yet learned in the class: list() breaks string into list of characters and join() concatenates the list of characters back into a string >>> l=list("Hello") >>> l ['H', 'e', 'l', 'l', 'o'] >>> "".join(l) 'Hello' >>> " ".join(l) 'H e l l o' >>> "_".join(l) 'H_e_l_l_o'