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.
[-329, 914, -420, -347, 866, 438, 793, -800, -476, -939, -1, 542, -512, 184, -145, 644, 208, -196, -508, 645]