Definition: 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.
Input: [-473, 916, -688, 852, 78, -4, 766, 781, -231, 198, -631, 70, -811, 269, 719, 146, 58, 475, 581, -311, 644, 271, 471]

[-4]