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:
10, 17, ['W', 'x', '2433', 'n', '5801', '7423', 'o', '491', 'Q', 'Z', '153', '129', 'e', '4249', 'K', '887', 'L', 'q', 'M', 'V', 'G', '331']

Ex Output:
L887K4249e129153Z


Ex Input:
3, 15, ['O', 'X', 'Y', '8437', 'O', 'P', '5727', 'S', 'S', 'X', 'p', 'X', 'v', 'C', 'P', 'C', '9615', '2595', '4587', '6235', '557', '2491', 'p', '7927', 'f', '4643', '1519']

Ex Output:
PCvXpXSS5727PO8437Y


Ex Input:
2, 6, ['H', '6881', '9537', 'R', '6883', 'f', 'U', 'A', 'a', '2583', '5859', '9527', '6251', 'D', 'h', 'e', '9117', '9105', 'P', '1901', '4065', '7887', '4893']

Ex Output:

f6883R95376881