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: 8, 15, ['2543', '5367', '1203', '3665', '8701', '4733', '6505', 'o', 'I', 'B', 'l', 'C', '5451', 'i', '7871', '3049', '5861']

7871i5451ClBIo