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.
[70, -42, -418, -210, 206, -540, -627, -304, -400, 556, 233, -68, 358, -427, 528, -330, -242, -990, -538, 446, -622]