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.
[-646, -276, 188, -550, 136, 21, -432, -448, 565, -610, 204, -850, -677, -479, 933, -12, -528, 258]