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.
[-652, -797, 794, 125, 504, 894, -106, 794, -252, 507, 82, 350, -988, -520, 4, 696, 875, -452, 13, -258, -734, 427, 457, 139, -135]