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:
2, 3, ['Y', '8113', 'T']

Ex Output:
T8113


Ex Input:
8, 9, ['u', 'Q', '8585', 'k', '4663', 'X', 'k', 'f', 'e', '8849']

Ex Output:
ef


Ex Input:
2, 19, ['1473', 'p', 'R', 'q', 'D', '1713', '8739', '3513', '4583', '7055', 'E', '3331', '395', 'x', '4989', 'O', 'i', '7729', '2797', '5689', '4477', '1525', 'Y']

Ex Output:

27977729iO4989x3953331E70554583351387391713DqRp