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.
[-680, -587, -115, 692, -802, -40, 164, 476, 609, -400, -721, -846, 744, 411, -662, -438, -623, -187]