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: [684, -674, -508, -56, 344, 773, -350, -313, 575, -15, 914, -137, 582, -344, -288, -58, -865, -756, -454]

[-313, 575, -454]