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: 8, 13, ['z', 'L', 'd', 'j', 'L', 'M', 'h', 'b', 'j', '5717', '5143', 'r', '511', '9239', 'a', '2583', '3035', '4471', 'F', 'b', 'K']

511r51435717jb