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: [-480, 47, -664, 721, 149, -555, 799, 551, -48, -697, 862, -311, 575, -420, 684, -895, 31]

[-555, 575]