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.
Input: [873, -997, 572, 126, -369, -637, -47, 21, -796, 631, 890, -119, -430, 191, -381, -995, 991, 866, 307, -914, -4]

[191, -4]