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:
8, 16, ['7351', '5277', '4759', 'e', '2059', '4409', '7617', '8537', '2697', '8107', 'X', 'd', '9949', '4353', '6067', 'J', '8225', 'Y', '2685', 'n', '759', 'a']

Ex Output:
J606743539949dX810726978537


Ex Input:
12, 13, ['I', 'y', 'w', 'a', 'Q', 'f', '2619', 'q', 'e', '8477', 'm', 'C', '203', 'C', '7237', 'h', 'C', 'M']

Ex Output:
203C


Ex Input:
1, 2, ['h', 'y']

Ex Output:

yh