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: [-304, 973, -769, -755, 990, -10, 372, 8, -731, 167, 168, -326, 418, 622, 107, 88, -844, -6, -536, 452, -936, 679, -88, 300]

[8, 88, -6, -88]