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.
[-819, -559, -554, 637, -266, -971, -58, -772, 972, -552, 374, 959, 994, -331, -367, 612, -480, 319, 483, 658, -561]