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.
[504, -228, -810, 831, 599, -733, 633, -430, 134, -26, 69, -572, -292, -121, -611, 504, 283, 163, 120, -572]