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.
[635, -72, -357, 645, 272, 618, 226, 409, -944, 420, 340, -448, -158, -652, 355, -568, 540, 467, -728, -755, 497, 578, 307, -844]