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.
[538, 523, 848, -843, -844, -40, 556, -172, 139, 839, -31, -942, -506, -161, -48, -75, 677, 500, 49, -332]