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.
[-1, -684, -703, -804, 645, 541, 717, -945, -677, -218, 921, 480, -886, -387, -620, 380, -121, 336, 957, -418, 151, -634]