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, 2, ['231', '4551', '3343']

Ex Output:
4551231


Ex Input:
7, 13, ['4735', '7529', 'Q', '9973', 'C', '1841', 'L', '7263', 'p', '7185', 'R', '8391', 'R', 'R', 'n', 'H', 'h', 'H', '11', '3773', '6221', 'z', 's', 'd']

Ex Output:
R8391R7185p7263L


Ex Input:
6, 10, ['J', 'V', 'o', '5893', 'v', 's', '9527', 'L', 'v', '7521', 't', 'l', '655', '2203', '4773', 'R', '9485', '8899', 'z']

Ex Output:

7521vL9527s