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: [-530, 223, 965, -782, 378, 212, 630, 250, -131, -921, 866, 391, 436, -510, -849, 521]

SOLUTION: [212, -131]

PROBLEM: [-220, -340, 472, -774, 175, 457, 56, 345, -136, -183, -946, 498, -296, 51, 120, -317, -52]

SOLUTION: []

PROBLEM: [187, -222, 378, 372, -526, 57, -358, 95, -28, 720, 625, -287, 308, -497, 305, 465, 351, -295, 683, 810, 121]

SOLUTION:
[-222, 121]