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: 1, 4, ['O', 't', '8177', 'D']

Output: D8177tO


Input: Consider Input: 3, 4, ['Z', 'P', '7969', '7221', 'a', '5397']

Output: 72217969


Input: Consider Input: 2, 4, ['7269', '5975', 'X', 'l', '3077', '9397']


Output: lX5975