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: [589, 374, -99, 468, 643, -531, 643, 506, -465, 484, 850, 587, -371, -806, -947, -140, -678, 923, -572, -346, 686, 578, 614]

[-99, 484, 686]