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.
[-85, 320, 30, 656, -109, -717, 48, -994, 506, 312, 235, -511, -984, -878, 50, -678, -441, -321, -343, 266, -526, 559, -640]