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, 4, ['O', '7177', 'f', 'Q', '3429', '3121', '4399', 'H', '6081', 'V', '4367', '7889', '5533', '9109', 'K']

Ex Output:
Qf7177


Ex Input:
1, 6, ['m', '6947', '9549', '8715', 'R', 'h', 'z']

Ex Output:
hR871595496947m


Ex Input:
3, 5, ['7895', 'T', '2277', 't', '6041', '5821', 'u', 'i', 'I', '9155', 'h', '2985', 'I']

Ex Output:

6041t2277