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, 9, ['a', '6957', '6483', 'l', '9521', '4219', 'L', 'w', 'B', 'L', 'l', '8153', '7779', 'p', 'L', 'b', '2213', 'm', '5175', '2121', 'o', '5497', '8651', '1421', '979', 'G']

BwL42199521l6483