instruction:
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.
question:
[508, 544, -925, -877, -591, -257, -13, -377, 723, -135, -448, 443, 840, 999, 74, 794, -900, 965, -712]
answer:
[999]

question:
[-133, 583, -140, -991, 987, 220, 734, 794, 73, -275, 239, -982, 996, -206, -64]
answer:
[]

question:
[-352, 259, -660, -205, -238, -299, 48, -5, -31, 326, -413, -472, -967, -691, -238, -124, -461, 529, 338, -597, 393, -479]
answer:
[-5, 393]