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: 7, 16, ['P', '9497', '5415', '9123', '9105', 'U', 'o', 's', 'R', '8587', '4141', 'H', '2877', '9293', 'I', '8019', 'B', 'x', '8509', 'Z', 'B', '7753', '6125']

8019I92932877H41418587Rso