Definition: 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.
Input: 3, 7, ['3549', '5251', '4865', '3859', 'U', '4695', 'q', '2545', 'd', '859', 'W', '2125', 'Q', '6801', 'V', 'Z', '8969', 'g']

q4695U38594865