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: [-409, 371, 256, -658, 84, -577, 871, -979, 2, -690, 121, -702, -850, -172, -629]

[-979, 2, 121]