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]: 1, 1, ['U', 'R']
[A]: U


[Q]: 1, 2, ['7359', '647', 'b', '6675']
[A]: 6477359


[Q]: 15, 17, ['3539', 'x', 'l', 'n', '5183', 'x', '2675', 'i', '601', '6863', '4195', 'n', '8113', 'g', 'Y', '9961', '669', '4883', '5279']
[A]:
6699961Y