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:
17, 27, ['k', 'p', 's', '3925', '4913', 'u', '983', '6355', '7185', 'k', 'N', '6665', 't', '6471', 'i', '139', '3221', '9603', '5031', 'P', '4677', 'o', 'x', 'Y', 'E', 'f', 'G']

Ex Output:
GfEYxo4677P503196033221


Ex Input:
8, 16, ['O', 'e', '5857', '6759', '9787', 'e', 'j', '9173', 's', '4135', 'j', 'I', 'g', 'f', '2129', 'n', '3337']

Ex Output:
n2129fgIj4135s9173


Ex Input:
18, 19, ['d', 'n', '2003', '5705', '901', 'H', '6985', '2245', 'k', '1473', '3271', 'q', 'k', '4295', 'v', '3357', '8605', 'L', 'L', '1247', '8027']

Ex Output:

LL