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.
[-629, 151, -321, -700, -450, -790, 212, 15, -945, 902, 211, -408, -850, -132, 476, 400, -991]