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.
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Question: 1, 7, ['a', '3469', '4831', 'm', 'u', 'b', 'E', '3319', '363', '2181', '2269']

Answer: Ebum48313469a


Question: 2, 13, ['P', 'U', 'k', '6209', 'y', 'P', '273', '3377', '5205', 'p', '1079', 'O', '2875', '1679', 'c']

Answer: 2875O1079p52053377273Py6209kU


Question: 2, 28, ['4905', 'Q', 'u', '7615', 'D', '4979', '9455', '4523', '9455', 'E', 'i', 'T', '5475', '5477', '4897', '9037', '1539', '4783', 'y', 'Z', '6401', '8407', '2751', '7963', '5059', '3457', 'a', 'k', 'W', 'b']

Answer:
ka345750597963275184076401Zy478315399037489754775475TiE9455452394554979D7615uQ