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, 3, ['Y', 'k', 'P', '1517', 'z', '8727', 'U']
[A]: PkY


[Q]: 1, 10, ['c', '5993', 'n', 'H', '8699', 'v', '5721', '4691', 'P', 'B', 'A', 'r', '2361', '7181', 'm', '5609']
[A]: BP46915721v8699Hn5993c


[Q]: 1, 8, ['6761', 'a', '3347', '1943', 'a', '4195', '6401', '8735', 'H']
[A]:
873564014195a19433347a6761