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.
[-327, -599, 614, 134, 502, 466, -425, 471, -525, 284, -199, 787, -109, -921, -819, 321, -321]