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: [-540, -448, -125, -613, 285, -253, 967, -179, -640, -180, -771, -528, 340, -723, 999]

SOLUTION: [999]

PROBLEM: [53, 635, -670, -887, -568, 988, -969, -586, -180, 397, -34, 53, 39, -466, -190, 693, -696, -770, -326, 668]

SOLUTION: [-969, -696]

PROBLEM: [644, -269, 831, -498, -443, -112, 471, 575, 619, -363, 566, 684, -783, 29, 316, -597, -808, -269, -15, 237, -568]

SOLUTION:
[575, -363, -808]