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:
7, 7, ['L', 'N', 'k', '4239', '9509', 'B', '875', '8169', '5417', 'N']

Ex Output:
875


Ex Input:
2, 5, ['365', '3543', '3853', 'o', 'X', 'A', 't', 'n', 'D', '4773', 'D', '4257', '6539', '7915']

Ex Output:
Xo38533543


Ex Input:
2, 7, ['G', '3061', '4895', 'V', '5883', '5589', 'Z', 'w', '1443', 'Q', '7403', 'G', '4009', 'q', 'S', 'm', '735', '4351', '4817', '7887', '4015', 's']

Ex Output:

Z55895883V48953061