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.

2, 2, ['G', '6469']
6469

6, 11, ['49', 'n', 'R', '3171', '8781', '8973', '5647', '8111', '8795', '7361', '3335', 'B']
333573618795811156478973

4, 6, ['C', '9285', '5711', '3371', 'a', '5757', '2341', 'z', '2763', 'I', '1893']

5757a3371