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: [-121, -36, -346, -923, -165, 639, 935, 426, -691, 121, -926, -259, -316, 405, 198, -363, 889, -731, -470, 664, 876]

[-121, 121, -363]