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: 3, 17, ['4403', '293', '2597', 'E', 'p', 'D', 'I', 'r', 'u', '3189', '6871', '3437', 'g', 'P', 'L', 'U', 'C', 'v', 'H', 'J', 'i']

CULPg343768713189urIDpE2597