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.
[-990, -989, 977, -255, -648, -94, -380, -129, 673, -322, -942, 567, -162, -687, -758, 603, -533, 52, 247, 973, 632, 664, -135]