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:
8, 13, ['5437', '9055', 'j', '3087', '4775', 'a', 'Z', '5153', 'w', 'j', 'W', 'x', 'e', '5617', '9221', '2469', 'C', 'j', '2781', 'Z', '3005', '8983', '7937', '4671', '9745', '5467']

Ex Output:
exWjw3515


Ex Input:
2, 3, ['2661', 'T', '8855', 'I', 'f', 'P']

Ex Output:
5588T


Ex Input:
5, 9, ['V', 'W', '5687', 's', '4661', '2129', '4267', '6935', '2725', '5193', '5093']

Ex Output:

52725396762492121664