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: [998, 591, -359, -574, -489, 483, 679, 36, -880, -188, -279, 978, -382, 421, 397, 925, -45, -453, 734, -639]

[]