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.
[856, -835, -753, -478, 848, 220, 360, -150, -15, -289, -974, -620, -247, -559, -668, 332, 608, 402]