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.
[-294, -16, 704, 707, -688, 872, -304, 833, -299, -401, 44, -675, -810, -279, -232, 442, 566, 397, 347, -626, 646]