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.

4, 6, ['5237', 'U', '7073', 'K', 'R', 'g', 'D', '17', 'I', '3039']
gRK

16, 20, ['7675', 'c', '9729', '8219', 'P', '9939', '9217', 'C', '4067', '549', 'g', 'w', '3793', 'I', 'U', 'R', 'S', '2615', 'h', 'M', '889']
Mh2615SR

8, 10, ['6759', '8491', 'W', '2857', '3055', '3415', 'p', '5623', '4141', 'j']

j41415623