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: 3, 12, ['N', '9659', '2169', '575', '2155', 'c', '2415', '3095', '2891', '8033', '3641', 'T', 'M', '8365', 'T', '343']

Output: T14633308198259035142c55125759612


Input: Consider Input: 3, 5, ['l', '7281', 'I', '9805', '9063', 'T', 'f', 'k', 'X', 'D', 'j', '9739']

Output: 36095089I


Input: Consider Input: 20, 23, ['D', '2507', 'J', '4027', 'X', 'P', '6919', 'l', 'w', 'w', '8827', '6261', '53', 'q', '1191', 'I', '5277', '4617', '1765', '4849', '4037', '3791', 'B', 'p', '7941']


Output: B197373049484