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: 17, 20, ['7581', '7161', 'L', '3111', '905', 's', 'X', '7591', '3511', '7285', 'M', 'U', 'E', 'X', '8101', '7781', '8177', '9261', 'R', 't', 'l', 'C', '9879', 'e', 'K', 'P']

tR92618177