In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.

Input: Consider Input: 5, 7, ['2725', '1489', 'P', '2021', 'c', '1605', 'R', 'T', 'p', 'q', '6487', '3395', 'u', 'x']

Output: R5061c


Input: Consider Input: 22, 26, ['V', 'O', '511', 'c', '4015', 'P', 'R', 'L', '115', 'L', '6809', 'S', '2397', 'X', 'e', 'Y', 'I', 'O', '8125', 'u', 'r', '9403', 'Q', 'i', '5835', 'U', 'm']

Output: U5385iQ3049


Input: Consider Input: 5, 6, ['C', '4493', '4131', 'N', '1481', '4105', 'R', '7257', 'N', 'o', 'w', 'L', 'v', 'Z', '5037', 'T', '9765', 'K', '7273', 'l', 'C', 'u']


Output: 50141841