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, 13, ['4817', 'J', '9459', '873', 'U', 'V', '3275', 'c', 'q', 'I', 't', 'e', '7837', 'g', 'U', '8937', '5857', 'm', '751', 'f']

7837etIqc3275VU8739459J