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: [510, 41, 359, -596, 86, -312, 90, -724, 710, 722, 899, 817, 743, 167, 220, -453, -947, -321]

[]