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]: 3, 9, ['3563', '217', 'y', 'N', '999', 'd', 'x', 'W', 'E', '695', '1837', '2221', '7513', '1613', 'Q']
[EX A]: EWxd999Ny

[EX Q]: 7, 8, ['z', '4705', '131', '3529', '9459', 'R', 'Z', '4137']
[EX A]: 4137Z

[EX Q]: 7, 11, ['7993', '2857', 'a', '7945', 'L', '8881', 'Z', 'r', 'M', '2099', 'B', 'W', 'N', 'r']
[EX A]:
B2099MrZ