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: 15, 26, ['2757', 'l', '5759', '5133', '7373', 'c', '5573', 'm', 'Q', '7011', 'J', '5541', '8435', '9723', 'H', 'i', 'd', 'n', '5039', 'a', '2605', 'i', '1857', '7789', '6071', '691', 'p']

691607177891857i2605a5039ndiH