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, ['X', '7573', 'p', '9987', '1239', 'O', '3761', '5539', '2901', 't', '173', '2795', 'R', 'm', '9199', 'g', '7631']

7631g9199mR2795173