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:
8, 15, ['6749', '8811', 'm', '3179', 'w', 'X', '535', 'q', 'R', 'l', 'm', '8547', 't', 'U', 'o', 'P', 'Q', '655', '8445', 'b', 'A', '6715', 'U', '1457', '761', 'C', '3651']

Ex Output:
oUt8547mlRq


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

Ex Output:
l8721


Ex Input:
4, 16, ['6323', '3953', 'N', 'b', '7689', 'W', '6441', '2685', '7671', 'R', 'n', 'd', 'p', '265', '7327', '9281', '8931', 'l']

Ex Output:

92817327265pdnR767126856441W7689b