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.
[-691, -519, 704, -311, -175, -853, 727, -198, -376, -247, 546, -799, 431, -333, 100, 525, 447, 38, -859, 592, 672, 8, 257]