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: 23, 25, ['x', 's', 'S', '61', '2411', '6683', 'L', 'a', 'c', '7723', 'K', 'J', 'P', 'c', '2197', '5955', 'J', 'N', '4757', 'g', '961', '5237', 'G', 'G', '3999', 'b', '4361', '3357']

3999GG