TASK 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.
PROBLEM: [-597, 844, 714, 608, 251, 428, -507, 312, -525, -680, -589, -265, -634, 612, 157]

SOLUTION: [-525]

PROBLEM: [-555, -280, -167, 744, 316, -440, -353, -532, -819, -172, 570, 749, 990, 366, 698, -952, 892, -554, -808, 718, 88]

SOLUTION: [-555, -353, -808, 88]

PROBLEM: [-47, -189, 300, 555, 772, -210, 605, -865, 693, 851, -816, -9, 411, 154, -179, -818, -210, 382, -734, 886, -631, -724]

SOLUTION:
[555, -9, -818]