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:
5, 6, ['9891', '9721', 'q', 'u', '8721', 'l', 'm', 'p']

Ex Output:
l8721


Ex Input:
1, 8, ['5377', 'N', 'V', 'a', '7059', '3479', '1621', 'B', 'd']

Ex Output:
B162134797059aVN5377


Ex Input:
4, 29, ['h', 'Z', 'K', '4673', '5027', '9491', 'W', '1221', '9215', 'P', 'W', 'P', '793', '9425', 'W', '5139', 'e', '5823', '4239', 'k', 'i', 'C', 'P', 'L', 'w', '805', 'c', 'R', '9489']

Ex Output:

9489Rc805wLPCik42395823e5139W9425793PWP92151221W949150274673