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.
[849, -237, 574, -221, 362, 288, -649, 956, 669, -639, 159, -217, -280, 376, -710]