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:
1, 1, ['S', 'q', 'I', '5787', 'K']

Ex Output:
S


Ex Input:
3, 3, ['4603', '8043', '2565']

Ex Output:
2565


Ex Input:
17, 22, ['q', 'U', 'c', 'Z', 'v', 'C', '761', 'A', '7681', '8137', '5561', 'D', 'o', '2411', '8473', 'A', '3787', '5615', 'w', '3429', '5503', 'W', '4461', '4239', '8999']

Ex Output:

W55033429w56153787