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, 3, ['u', 'k', 'M', '7101', 'U', 'f', 'L', '653', '2863']

Output: Mku


Input: Consider Input: 1, 2, ['2081', '5651']

Output: 56512081


Input: Consider Input: 6, 6, ['e', 'y', '7143', 'G', 'k', 'u', 'W', '6149']


Output: u