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.
[29, -858, -239, 454, 978, 584, -336, -494, 852, -461, 838, -21, 883, 591, 581, -410, 250, 961, 411, 254, -789, 608, 704, 700, -273]