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: 8, 12, ['x', '9219', '3397', 'p', 'T', '5857', '8107', 'G', 'Z', '4839', 't', 'i', 'u', 'm', '6071', '7191', 'K', 'F', '2195', 'b', 'J', '5733']

it4839ZG