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.
[-413, -8, -621, -542, 544, 921, 698, -34, 145, -799, 709, -794, -327, -597, 67]