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:
4, 6, ['691', 'Q', 'X', 'A', '2501', '7941', 'e', '8967', 'm', '9729', 'O', 't', '7609', 'z', 'Z', 'C', '6027', '2363']

Ex Output:
79412501A


Ex Input:
10, 18, ['p', '5729', '2319', 'D', 'u', 'C', '5549', 'l', '6565', '2055', 'J', '6501', '9961', 'q', 'T', 'b', 'c', 't', '3407', 'M', '3705', 'h', '4409', '8927', 'J', '3701']

Ex Output:
tcbTq99616501J2055


Ex Input:
10, 15, ['D', '8659', '9521', '2149', 'Y', '6083', '3123', 'k', 'D', '2295', '8227', 'y', 'a', 'Y', '2711', 'I', '4907', 'D', '7773', 'U', '523', 'a', '865']

Ex Output:

2711Yay82272295