In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting string. 'i' and 'j' will be non-negative, and will always have a value less than the length of A. 'i' will always be less than 'j'. Perform the operations in order, i.e., do not reverse first and then concatenate.
--------
Question: 3, 8, ['6945', '2403', '7633', '2933', '1015', 'G', '7261', '9101', '6435', 'M']

Answer: 10191627G510133923367


Question: 1, 9, ['u', 'f', 'Q', 'z', 'Y', 'x', '1237', 'T', '5395', 'E', 'D', 'E', 'd', '2319', '8825', '711', '6667', '3109', 'b']

Answer: 5935T7321xYzQfu


Question: 3, 12, ['8159', '7121', 'f', '7547', '4399', '751', '8753', 'T', 't', 'd', 'T', 'J', 'V', 's', '6951']

Answer:
JTdtT357815799347457f