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:
14, 15, ['b', '863', '5093', '7589', '6635', 'X', '863', '8197', '3571', 'u', 'J', '1331', 'M', 'z', '9965', '3989', '2677', 'm']

Ex Output:
9965z


Ex Input:
3, 16, ['z', '2195', 'S', '1703', '3137', 'Q', 'D', 'C', 'u', 'F', 'q', 'x', 'B', 'T', 'b', 't', 'l', '3965', '5177', '7607', 't']

Ex Output:
tbTBxqFuCDQ31371703S


Ex Input:
6, 19, ['F', '1093', 'u', '5373', 't', 's', 'e', '9895', '7429', 'd', 'w', 'Y', 'j', 'X', '1405', 'o', 'u', 'c', '8397', '5269', 'q', 'E']

Ex Output:

8397cuo1405XjYwd74299895es