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.
[398, 112, -964, -191, -975, 584, 339, -921, 549, -917, -679, 336, -858, -529, -617, 975, 707, 131, 428, 153, 635, -218, 347]