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: 1, 1, ['C', '6223']

Output: C


Input: Consider Input: 3, 9, ['Y', '9075', '2327', '1643', '655', '935', 'a', 'j', 'm']

Output: mja53955634617232


Input: Consider Input: 13, 20, ['p', 'l', '8777', 'e', 'V', 'k', 'E', '3111', 'o', '3079', 'L', '5395', 'F', '3257', '5797', 'v', '9377', 'l', '3441', 'E', 'b', '5291', '4291', '7283', '8739', '3727']


Output: E1443l7739v79757523F