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: 21, 25, ['w', '4961', 'V', 'x', 'r', 'X', 'Z', '2833', '1217', '409', '8669', '8261', '7217', 'u', '4525', 'M', 'w', 'u', 'v', 'b', 'd', '75', '1507', '2053', '7125', '6541']

71252053150775d