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, 15, ['5341', 's', 'V', 'F', '4539', '5719', '5319', '2513', 'P', 'j', 'G', '5547', 'J', '8859', 'v', '6751', '3185', '8829', 'x', '3789']

Ex Output:
v8859J5547GjP2513531957194539FVs5341


Ex Input:
8, 13, ['s', '8529', 'p', 'm', '7059', 'j', 'C', '2863', '1513', '7099', 't', 'f', 'D', '6475']

Ex Output:
Dft709915132863


Ex Input:
6, 13, ['j', 'E', 'U', 'u', 'F', '6349', '4991', 'S', 'z', 'H', 'w', '8199', 'i', '8607', '1811', 'r']

Ex Output:

i8199wHzS49916349