Definition: 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.
Input: [600, -556, -424, -40, -634, -945, -54, -272, -564, -611, 683, -256, 999, 546, 351]

[-424, -272, 999]