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.
[-169, 729, -538, -470, -154, -120, 449, -670, -770, 84, -223, -987, 984, 86, -175, 75, 709, -768, -829, -484, 540]