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]: 12, 13, ['I', 'y', 'w', 'a', 'Q', 'f', '2619', 'q', 'e', '8477', 'm', 'C', '203', 'C', '7237', 'h', 'C', 'M']
[EX A]: 203C

[EX Q]: 2, 5, ['5633', 'w', '1423', 'Y', 'G', 'P', 'O']
[EX A]: GY1423w

[EX Q]: 3, 4, ['3029', '8437', '5801', '7569', 'm']
[EX A]:
75695801