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]: 7, 9, ['4337', '191', 'N', 'B', 'P', 'B', 'G', 'b', '2727', '6213']
[EX A]: 2727bG

[EX Q]: 3, 15, ['O', 'X', 'Y', '8437', 'O', 'P', '5727', 'S', 'S', 'X', 'p', 'X', 'v', 'C', 'P', 'C', '9615', '2595', '4587', '6235', '557', '2491', 'p', '7927', 'f', '4643', '1519']
[EX A]: PCvXpXSS5727PO8437Y

[EX Q]: 1, 5, ['3099', 'N', 'i', 'X', '8503', 'B', 'E', '5107']
[EX A]:
8503XiN3099