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, 15, ['5071', 'O', '2071', 'i', 'D', 'T', 'h', '2471', '9431', '9245', '6947', '749', '4035', 'E', 'n', 'B', 'D', '2639', '5307', 'H']

Ex Output:
nE40357496947924594312471hTDi2071O


Ex Input:
2, 8, ['S', '1177', 'V', 'X', '2357', 'J', '1385', '7695', 'd']

Ex Output:
76951385J2357XV1177


Ex Input:
3, 27, ['y', '1221', '8793', 't', '7361', 'x', 'U', 'n', 'k', '601', '5027', '7897', '7409', 'R', '4127', '1471', '4971', 'Y', 'j', '4439', '7609', 'Z', 'P', 'B', 'm', 'M', '8417', 'k', '6145']

Ex Output:

8417MmBPZ76094439jY497114714127R740978975027601knUx7361t8793