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:
7, 10, ['4027', '1861', 'q', '5477', 'N', '3417', 'F', 'C', 'V', 'U', 'R', 'O', '5575', '389', 'w', 'z', 't', '1083', '7865']

Ex Output:
UVCF


Ex Input:
10, 16, ['7189', 'i', 'Y', 'c', '9537', '6129', '9781', '6065', 'd', 'w', 'V', 'N', '9709', '5231', '1721', '7699', '1991', 'y', 'o', '2945', 'v', 'e', '3941', '5477', '6409', 'E', '1853', 'K', 'U', '1157']

Ex Output:
7699172152319709NVw


Ex Input:
2, 3, ['3881', 'C', 'j', 'a', 'B', '8691', 'N', 'n']

Ex Output:

jC