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, ['i', '673', 'T', 'B', '7647', 'y', '6341', '7963', 'L', '7219', 'S', '3235', '1757', 'K', 'O', 'j', '9015', 'X', '5149', '3647', '7601']

79636341y7647BT673i