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: 3, 21, ['5869', 'T', 'R', 'u', 'U', '1365', 'V', 'W', 'v', '3553', '1195', '8801', 'J', '5313', 'Q', '5461', '6401', '2819', '2379', 'E', 'Y', '8483']

YE2379281964015461Q5313J880111953553vWV1365UuR