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.
[-450, -812, -168, -661, -631, 235, 440, -721, -961, 599, 362, -788, -787, 84, 2, 439]