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, 8, ['977', '9427', 'b', 'y', 'Q', 'z', '8989', '6961', '5259', '499', 'W', 'F', '8641', 'f', 'L', '1541', '3351', 'd']

Ex Output:
69618989zQ


Ex Input:
1, 3, ['121', 'D', 'T', 'D', 'e']

Ex Output:
TD121


Ex Input:
5, 11, ['H', '6847', 'P', 'K', '7765', '887', 'h', 'X', '283', 't', 'N', '2945', 'P', '2385', 'k', '3649', 'W', '119', 'M', 'T']

Ex Output:

Nt283Xh8877765