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, 9, ['6997', '4095', '7629', '9191', 'l', '1345', '6633', 'Q', 'F', 'Z', '8353', '57']

Ex Output:
FQ6633


Ex Input:
2, 7, ['o', '5455', '3379', 'y', '1305', '8357', '7411', 'q', '311', 'z', 'M']

Ex Output:
741183571305y33795455


Ex Input:
2, 4, ['8893', '7141', '6977', 'W', 'h', 'g', '7273', 'v', 'p', 'c', 'B', 'Y']

Ex Output:

W69777141