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.

Ex Input:
3, 6, ['95', '1973', 'L', '8811', '2655', '2661', 'v', 'a', '1115', '7687', '8807', 'r']

Ex Output:
166255621188L


Ex Input:
2, 2, ['q', 'w', 'D', 'A', '3751', 'G', '2419', 'V']

Ex Output:
w


Ex Input:
4, 12, ['6317', 'o', '3931', 'Y', 'J', 'P', 'w', 'v', 'j', 'p', 'j', '4777', 'm', 'I', 'D', '5555', 'G', 'Q', '1141', 'Q', 'P', 'o', '3091', 'T', '7469', 'G', '3311']

Ex Output:

7774jpjvwPJY