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.

Ex Input:
2, 8, ['B', '6435', 'S', 'W', 'k', '1127', 'v', 't', 'G', 'N', '7331', 'O', 'b', 'V', '3141', 'E', 'L', 'F', '2333', 'y', '9783', 'u', 'T']

Ex Output:
tv1127kWS6435


Ex Input:
14, 23, ['6775', '9487', '1751', 'Z', 'm', 'W', '6101', 'J', '883', '3629', '1087', '5949', '1321', '1205', '859', '4807', 's', '5503', '2251', 'R', 'T', 'b', 'z', 'U', 'E', '2593']

Ex Output:
zbTR22515503s48078591205


Ex Input:
2, 2, ['8707', 'e']

Ex Output:

e