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, 16, ['h', '3761', '5275', '4429', 'I', 'x', 'H', 'S', 'F', '1891', 'o', 'r', 'i', '875', '6999', 'u', '8045', 'A', 'd', 'y', 'V']

Ex Output:
u6999875iro1891FS


Ex Input:
3, 5, ['9801', '6309', '4085', 'U', 'B']

Ex Output:
BU4085


Ex Input:
4, 10, ['q', 'b', 'w', 'l', '2411', '7849', '519', '6333', '6193', '6731', '8941', '9211', 'e', 'g', '1349', '5615', 'u', '7841', '3289', 'j', 'r']

Ex Output:

67316193633351978492411l