In this task you will be given a list of integers. You should only return an integer if the first digit is the same as the last digit in the number. If an integer has a single digit, then it should be returned. If there are no integers that start and end with the same digit then an empty list ("[]") should be returned.
[528, -786, 221, -478, 973, -101, 304, 387, -40, -993, 305, 526, -89, -707, 166, -117, -686, 287]