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: [-670, 8, -91, 429, 819, 290, 646, -14, -533, 315, -337, -919, -250, -800, 270, 160, -351, -883, -683, -166]

[8, 646, -919]