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.
[-390, 743, -821, -490, 835, 552, -229, -163, -520, 669, 672, 553, 225, 7, -472, 164, 842, -611]