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: [-446, -33, 434, 808, -611, -631, -952, 861, 121, 51, -579, -711, 439, -333, 223, -611, 439, -394]

[-33, 434, 808, 121, -333]