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.
[712, -399, 950, -439, 973, 282, -771, 842, -255, 226, 18, -274, 850, -50, -439, -292, -89, 360, -406]