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.
[143, 346, 271, -958, -21, 221, 502, -518, -493, 957, -648, 112, -623, -208, 673, -552, 414, 972, 608, -711, 472, -171, 870, -726]