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: [-729, 393, -602, -511, -133, 668, 919, 508, -803, -498, -189, 509, -405, 138, 974, 771, 601, 931]

SOLUTION: [393, 919]

PROBLEM: [-136, 895, -419, 36, -782, -144, -191, 586, 13, -461, 399, -215, 716, 737, -175, -712, 971, -781, 592, 106, -546, 991, 482, -547]

SOLUTION: [-191, 737]

PROBLEM: [85, -685, 230, 821, -507, 121, -441, -461, 166, 313, 100, -438, 313, 850, 729]

SOLUTION:
[121, 313, 313]