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: 6, 6, ['9431', '6731', 'A', '5153', 'K', '1567', 'D', 'Y', 'a', 'q', 'x']

Output: 7651


Input: Consider Input: 4, 7, ['3421', '6129', '593', '203', '2731', '1393', '9739', '1087', '3453', '1389', 'W', 'D', 'b', '9261']

Output: 937939311372302


Input: Consider Input: 5, 9, ['5983', 'r', 'c', 'l', '5211', 'y', 's', 'j', 'H', 'X', 'U', 'T', '6393', 'u', 's', '595', '5689', 'j', 'd', 'V', 'o', '7151', '1051']


Output: Hjsy1125