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, 4, ['O', 't', '8177', 'D']

Ex Output:
D8177tO


Ex Input:
12, 17, ['8471', '9863', '8113', 'v', 'R', '1465', 'Q', '7039', '3795', '1969', '7215', '7069', 'k', 'e', '8401', 's', '961']

Ex Output:
961s8401ek7069


Ex Input:
4, 13, ['6183', 'b', 'S', '8131', '1689', 'K', 'A', '5185', '2033', '7489', 'p', '2051', '325', '8501', 'P']

Ex Output:

3252051p748920335185AK16898131