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.
[-38, -507, 554, 564, -233, 334, -871, -226, -411, 632, 138, -687, -657, -631, -210, -743, 670, -105, -126, -490]