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, 9, ['3563', '217', 'y', 'N', '999', 'd', 'x', 'W', 'E', '695', '1837', '2221', '7513', '1613', 'Q']

Ex Output:
EWxd999Ny


Ex Input:
3, 5, ['S', 'c', 'y', '6121', 'r', '3279', '6425']

Ex Output:
r6121y


Ex Input:
3, 4, ['o', 'i', '7189', 'h']

Ex Output:

h7189