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.
[-479, -806, -494, -389, 154, 59, 417, -972, 921, -336, 934, 380, 591, -721, -627, -725, -532, -513, -518, -993, 166, 224, -344, -489]