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.

10, 16, ['5261', 'e', 'S', 'Q', 'C', '6087', '3535', 'I', '709', '3639', 'w', 'a', '3203', 'D', 'h', '8869', '8315', 'D', 'Y']
8869hD3203aw3639

1, 2, ['7921', 'Q']
Q7921

1, 3, ['3225', 'B', 'B', '7237', '9919', '2893', '9617', 't', '9933', 'A', '655', '5053', 'U', 'h', 'E', '3703', '3499', '8949', '4845', 'H']

BB3225