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.
[-347, 821, -873, -688, 214, -437, -670, 944, -389, -621, 246, -971, -784, 518, -753, -904, 668, -658, 272, 347, -482]