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: 9, 9, ['o', 'k', 'X', 'I', '1819', 'O', '8135', 'i', 'r', '1783', 'w', '7861', '5287', 'C', 'M', 'h', '7615', '3181', '7121', '2765', 'j', 'S']

r