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: [-622, -380, -312, -420, 909, -923, -142, 873, 346, -717, -798, -475, -533, 977, 515, 912, -689, -63, 268, 544, 554, 727]

[909, -717, 515, 727]