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:
6, 10, ['6855', '6165', 'o', '8699', '3887', '659', '7185', '7243', '7311', 'I', '7531', 'c', '901', 'v', 'C', 'P', 's', '3891', '571', 'g', '7413', 'H']

Ex Output:
I731172437185659


Ex Input:
2, 24, ['3885', '9741', '3311', 'r', '2897', 'm', '6009', 'h', 's', 't', 'a', 'n', 'v', '4017', 'W', 'F', '6949', 'n', 'I', 'u', '6617', 'v', 'g', '7819', '2619', 'N', '6055', '5251', 'A']

Ex Output:
7819gv6617uIn6949FW4017vnatsh6009m2897r33119741


Ex Input:
20, 24, ['Z', 'v', '8341', 'a', '237', 'W', 'P', '9119', '3177', '3045', '4233', 'Q', 'Q', 'H', '181', '8847', 'T', '7749', '4257', 'h', 'f', 'r', 'u', '5215', '2685', 'h', 'i', '355', '7721', '1881']

Ex Output:

5215urfh