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, 915, -804, -61, -420, 521, -239, 117, 99, 623, -603, 839, 855, 898, -978, 744, -927]

SOLUTION: [99, 898]

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

SOLUTION: [-525]

PROBLEM: [4, 621, -734, 857, -399, -304, 666, 867, 264, 600, -30, -56, 690, 678, -792, -12, 814, 883, -228, -796, -194]

SOLUTION:
[4, 666]