Definition: In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.
Input: 2, 12, ['8693', '8177', 'C', '3263', 'f', 'b', '1749', 'e', '8939', '8417', '9185', '5821', 'V', 'U', '2379', 'R', 'R', 'r', '527']

5821918584178939e1749bf3263C8177