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:
5, 5, ['l', '1553', '6191', '3301', 'C', '4133', '8579', 'V', 'b', '7421', '8941', '9721', 'i', 'm', '1383']

Ex Output:
C


Ex Input:
2, 4, ['v', '807', 'C', 'n', '7213', 'l', '5943']

Ex Output:
nC807


Ex Input:
8, 12, ['3199', 'p', '1661', 'T', '4545', '7223', '1761', 'v', '3', 'e', 'O', '7027']

Ex Output:

7027Oe3v