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.
[141, -138, -51, 94, -299, 21, 401, -418, 439, -812, -763, -521, 617, -681, -298, -325, -385, -183, -500, -520, -878, -429, -839, 604, 338]