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.
[-222, -945, 434, -594, -123, 666, 923, -306, -303, 781, -707, 403, -323, -536, -432, -688, -397, -950, 808, -651, -108, 684]