Definition: 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.
Input: [720, 615, 502, -580, 973, 640, 227, -397, -869, 782, 603, -260, 224, 666, -159]

[666]