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.

Ex Input:
3, 3, ['f', '7257', 'n', 'Z', '1091', 'M', 'S', 'A', 'W', 'g']

Ex Output:
n


Ex Input:
7, 16, ['J', '8449', '9507', '6729', '1979', 'm', 'W', '8217', 'E', 'r', 'J', '7923', 'n', 'A', 'M', '6715', 'F', 'b', 'I', '1375', '6587', 'h', '3101', 'N']

Ex Output:
6715MAn7923JrE8217W


Ex Input:
3, 28, ['I', '3581', 'I', 'L', '4673', 'I', '6517', '5791', 'r', 'f', 'p', '351', '7871', 'A', '1853', '735', '6077', 'a', '2411', 'h', 'y', '8603', 'w', '93', 'J', 'X', '9757', '6989', 'O', '1571']

Ex Output:

69899757XJ93w8603yh2411a60777351853A7871351pfr57916517I4673LI