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.
[-670, 223, -21, 379, -542, 577, -884, -220, 506, 967, 91, -119, -851, -243, 202, 635]