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.
[-659, -755, -235, 971, 503, -206, 694, 956, -2, 322, 899, -938, -261, 883, 189, -67, -847, 140, 720, -274, -771, 557]