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: 4, 6, ['H', 'x', '9417', '2931', 'H', '557', 'Z', 'D', 'x', 'F', '6689', 'k', 'B', 'o', '7843', 'F', 'a', '8267', '5085', 'P', '297', '9563', '3545', '7337']

557H2931