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:
5, 9, ['q', 'g', '1455', 'f', '2605', 'B', 'r', 'B', 'y', 'z', '8295', '7259', '4945', '4519', '7885']

Ex Output:
yBrB2605


Ex Input:
1, 5, ['9965', 'a', 'P', 'F', '3811', '4375']

Ex Output:
3811FPa9965


Ex Input:
8, 17, ['d', 't', '845', 'R', '2771', '5703', '4337', 'P', 'L', 'e', 'S', 'x', '5121', '8537', 'T', '1371', '6561', 'd']

Ex Output:

65611371T85375121xSeLP