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.
[649, 821, 215, 924, 993, -711, 455, 940, -671, -698, 457, -223, -531, -955, 107, -679, -488, 151, 446, 55, 668, 992]