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: 7, 15, ['S', 'd', 'Y', 'D', '809', 'C', '279', '9719', 'B', '8493', 'q', '7469', 'C', '1591', '8649', '3719', '6719', 'e', 'p', 'O', 'I', '7223', 'I']

86491591C7469q8493B9719279