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, 2, ['W', 'I', 'f', 'R', '7797', 'R']

Output: IW


Input: Consider Input: 3, 4, ['P', '7535', '9919', '5299', '8521', 'q', 'q', 'i']

Output: 52999919


Input: Consider Input: 6, 14, ['Y', 'f', 'x', '7883', '851', '8491', 'L', '4307', '455', '4381', 'u', '4361', 'E', 'X']


Output: XE4361u43814554307L8491