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: 1, 22, ['7225', '1381', '4489', 'W', 'r', 'T', '4815', 'Y', '7669', 'T', '9951', '6245', '7043', '7869', '7597', '2571', 'Z', 'u', '8429', 'E', '4147', '9721']

97214147E8429uZ257175977869704362459951T7669Y4815TrW448913817225