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, 25, ['2951', '7349', '5659', '873', '2215', 'B', 'H', '6251', '4361', '4445', 'Z', '161', '963', '3349', '4597', '8765', 'N', 'a', '4247', '7931', 'L', 'v', 'z', 'G', '815', 'z', '5145', 'q']

815GzvL79314247aN876545973349963161Z444543616251H