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, 8, ['6337', 'T', '8621', 'a', '969', 'v', '7639', '5773', '2587', '8043', '2553', '5067', 'W', 'Y', 'b', '1775', '1561', '5237', '7453', 'i', '4997', 'v', '5905', '6615']

57737639v969a8621T6337