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, ['5483', '4787', 'H', 'Q', '7741', '5841', '9857', '8207', '1303', 'J', '9197', 'T', '3669', '2037', 'w', '2951', 'F', '9037', '4795', '4493', '9401', '129', '183', 'u', '4265', 'v']

9401449347959037F2951w20373669T