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: 4, 16, ['7279', 'F', 'Z', 'K', '4977', 'C', 'o', '4617', 'B', 'l', '6707', 'P', 'A', '9947', '5509', '3111', '9145', '7309', '2059', '6017', 'o']

311155099947AP6707lB4617oC4977K