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: 1, 19, ['9785', '2259', '383', 'm', '5461', '751', '7965', 'p', 'v', 'E', '2081', 'u', 'd', 'L', '485', '5681', '3471', '7777', 'r', '2893', '2631', 'h', '9443']

r777734715681485Ldu2081Evp79657515461m38322599785