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: Consider Input: 2, 4, ['7887', 'x', '3749', 'N', 'U', '2971']

Output: N3749x


Input: Consider Input: 2, 3, ['T', 'K', 't', '7165', '2285', 'm']

Output: tK


Input: Consider Input: 2, 5, ['645', 'p', '4907', '4145', '9045']


Output: 904541454907p