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 Q]: 5, 5, ['M', 'N', 'S', '1125', 'B']
[EX A]: B

[EX Q]: 4, 9, ['w', 'X', 'I', 't', '6513', 'l', '2163', 'k', 'z']
[EX A]: zk2163l6513t

[EX Q]: 9, 10, ['435', 'v', 'X', '8131', '5457', 'J', '6643', 'p', '9781', '8791', '9833']
[EX A]:
87919781