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.
[27, -229, -631, 937, -583, -658, 819, -962, -690, 148, 259, -81, 412, 187, -507, 145, -874, 669]