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: 4, 11, ['793', 'H', '9447', '9991', '4205', '915', 'h', 'u', '2857', 'N', 'l', '7963', 'p', '9881', 'J', 'M', 'M', 'W']

lN2857uh91542059991