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: 5, 6, ['O', '3491', '2665', '3429', 'u', 'C', 'R', 'B', '1111', 'b', 'T', 'Z', '6831', 'V', 'C', 'b', '4451', 'R', 'r']

Output: Cu


Input: Consider Input: 3, 7, ['z', 'b', 'm', 'A', '4713', '3293', 'm', '7883']

Output: m32934713Am


Input: Consider Input: 9, 14, ['9861', 'k', '207', '8773', '9139', '8087', 'L', '653', '387', '9531', 'J', '1591', 'x', 'Z']


Output: Zx1591J9531387