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:
1, 6, ['4937', 'x', '6497', 'l', 'n', 'V']

Ex Output:
Vnl6497x4937


Ex Input:
1, 2, ['W', 'I', 'f', 'R', '7797', 'R']

Ex Output:
IW


Ex Input:
1, 2, ['3785', '3567']

Ex Output:

35673785