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.
[684, 49, -845, -55, -414, 359, -858, -159, -711, 705, 419, 945, -19, -404, 233, -615, 957, 499]