Write a static method named problem$2$ that accepts a string and a positive integer k$.$ Find and return

a list with any k distinct characters. If k is greater than the length of the given string, return all the

distinct characters. You cannot use the collections module to solve this problem.

Call the function with the test case and display the return result.

Test case: if the given string is $$aaabbbcccdddeeefffggg$$ and k $=5,$ your function should return any

five distinct characters, e$.$g$.,[$a$,$b$,$c$,$d$,$e$].$