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.

9, 17, ['6779', '2141', 't', 'L', '5925', 'E', 'x', '1945', 'm', 'f', '4807', 'j', '3599', 'Y', 'f', 'y', '9147', '1905', '7873', '583', '4411', '9493', 'S', 'X']
9147yfY3599j4807fm

7, 15, ['8887', '757', '2347', 'M', 'K', 'T', '3265', '5567', 'Y', 'd', 'J', 'N', 'i', 'm', '4703', '8855', '4005', 'U', '1865', '4037', '339', 'v', '6393', '1763', '6435', 'F', 'l', '1075', '525', 'R']
4703miNJdY55673265

12, 17, ['8471', '9863', '8113', 'v', 'R', '1465', 'Q', '7039', '3795', '1969', '7215', '7069', 'k', 'e', '8401', 's', '961']

961s8401ek7069