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: Consider Input: 4, 18, ['g', '3947', 'z', 'n', 'W', '8501', '9869', '4273', '9439', '5445', 'u', '9033', '1749', 'g', 'x', 'w', 's', '6039', '8493', 'l', 'f', '5519', '2145', '3647', '8413', '2865', '8937', '2701']

Output: 6039swxg17499033u54459439427398698501Wn


Input: Consider Input: 3, 10, ['439', 'o', 'd', '4383', '6571', 'u', '2531', '5811', '9079', 'J']

Output: J907958112531u65714383d


Input: Consider Input: 21, 24, ['4399', '6949', '2331', '9663', '9883', '3623', '9947', '271', '8297', 'e', '169', 'T', '7719', '9179', '7571', 'B', 'q', '7563', '7391', '7073', 'g', '3219', 'n', 'r', '8411']


Output: rn3219g