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:
21, 27, ['4191', 'x', 'G', 'h', '69', 'b', '1105', 'h', '69', 'F', '1871', 'B', '3329', 'w', '7623', '2829', 'T', 'R', 'O', '2811', 'k', 'E', '7445', 'Z', 'J', '7441', 'M']

Ex Output:
M7441JZ7445Ek


Ex Input:
21, 21, ['i', 'p', 'i', '3553', '1009', '2477', '2835', '8841', 'A', '5679', 'L', '4213', 'J', 'H', 't', '8047', 'r', 'E', '1497', 'L', 'c', '5859', 'o', 'l']

Ex Output:
c


Ex Input:
5, 11, ['991', '4061', 'B', '1073', '6591', 'D', '2675', 'b', '9227', 'Y', '4821', 'i', 'T', 'G', 'k', 'z', 'E', '5651', 'S', 'o', '3773', '9643', 'W', 'a', '7951', '8743', 'b', 'B', 'W']

Ex Output:

4821Y9227b2675D6591