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: 11, 17, ['R', '7759', '8973', 'T', '2127', '8129', '8941', '5255', 'E', '5011', 's', '171', '6715', 'O', 'p', 'j', '9723', '1259', '5959']

9723jpO6715171s