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.
[990, -955, 87, -799, 154, 458, 623, 286, 53, -990, 850, -156, 57, -982, 587, 30, 361, 342, -640]