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: 12, 21, ['6333', 's', 'R', 'p', '3167', 'I', 'v', '8489', '3899', '2227', '6153', 'G', 'A', 'z', 'k', 'W', '3049', 'C', '929', 'j', '5567', '8067', 'H', '755', '5441', '1771', 'a', '3415', '6233']

5567j929C3049WkzAG