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.
[929, 198, 139, -814, -874, -388, 797, -314, -558, -932, 656, -371, -109, -56, 594]