Definition: 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.
Input: [475, 105, -951, -139, -424, -947, -608, 736, -428, 210, -373, -649, -463, 171, -426, -483, 890, -659, -133, -636]

[-424, -373, 171, -636]