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: 1, 2, ['A', '8103', '7829']

Answer: 3018A


Question: 4, 13, ['6993', '5601', 'n', 'J', 'E', 'M', 'd', 'T', 'V', 'C', '4969', 'J', 'F']

Answer: FJ9694CVTdMEJ


Question: 4, 10, ['5881', '4151', '2509', '5249', '2983', '4913', 'g', 'i', 'W', 'Z', 'F', 'y', 't', '6303', '2025', '9799', 'V', 'P', '1675', '6789', '8113', 'Y', '9115', '3921', '6671']

Answer:
ZWig319438929425