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.
[-937, -1000, 358, 312, -206, -108, -458, -558, -468, -220, -291, -548, 170, -73, 312, -608]