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:
13, 17, ['y', '9627', '2851', 'E', 'l', '2411', 'c', 'v', 'K', 'r', 'R', 'p', '3147', 'A', '3531', '3473', 'u', '929', '2245', 'S', 'u', '9351', 'P']

Ex Output:
u34733531A3147


Ex Input:
10, 13, ['c', '9643', '191', 'N', 'n', '2273', 'a', 'q', 'T', '7775', 'v', 'c', '8889', 'G', '533']

Ex Output:
8889cv7775


Ex Input:
12, 21, ['e', 'C', '1919', '1409', 'C', '5215', '9709', '1457', 'o', '4769', 'M', '9825', 'M', '1129', '7783', 'S', 'g', '6493', 'P', '6791', 'z', 'F', 'B', 's', 'V', 'N', 'k']

Ex Output:

z6791P6493gS77831129M9825