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: [-622, -551, -889, 137, 617, 620, -256, -158, 806, -957, -556, -268, 454, -672, -91, 158, 904, -871, 491, 309, -731, 850, 138, 97]

[454]