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:
12, 22, ['A', 'V', 'f', '3417', '3809', '8229', '2033', 'Q', '3197', '7497', 'U', 'j', 'm', '4295', 'r', 'O', 'd', '2963', '8559', '1341', '3391', 'V', '9689', '5393', '1221', '2999']

Ex Output:
V3391134185592963dOr4295mj


Ex Input:
1, 4, ['6145', 'D', '2827', 'y']

Ex Output:
y2827D6145


Ex Input:
4, 5, ['4701', '3187', 'k', '5841', '4963', 'E', 'F', '2869', 'V', '6277']

Ex Output:

49635841