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.

[Q]: 3, 3, ['U', '8399', '645', '3165']
[A]: 645


[Q]: 1, 4, ['8533', '1413', '7079', 'B', '1267', 'Q', '4645', '8297', 'm', 'y', '1829', 'E']
[A]: B707914138533


[Q]: 13, 13, ['6191', 's', 'u', 'x', '4761', '9569', 'd', 'X', 'G', 'M', '4287', '2695', '1267', 'H']
[A]:
1267