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:
3, 4, ['d', '169', 'W', 'Y']

Ex Output:
YW


Ex Input:
1, 11, ['5733', '7425', '6855', '1297', '1923', 'L', '9433', '7103', 'E', 'X', 'h']

Ex Output:
hXE71039433L19231297685574255733


Ex Input:
1, 2, ['l', '9739', 'v']

Ex Output:

9739l