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.
[962, -500, -335, 389, -554, -214, -909, -187, 874, -981, 143, -664, -557, 876, -552, -939, -992, 561, -871, -884, 721]