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.

6, 19, ['1247', 'w', '6657', '3757', '9313', 'u', '5655', 'n', '9559', '4017', '9041', 'n', 'w', '155', 'C', 'N', '6351', '9761', '5701', '3857', '6167', 'u']
107516791536NC551wn140971049559n5565u

5, 5, ['4733', 'G', '9275', '7757', 'I', 'v', 'z', 'p', 'Z']
I

5, 9, ['c', 't', 'c', 'Z', '2351', '2095', '1053', 'c', '7663', 't', '6591', '5361', 'F', '8681', '1265', '1315', '5813', 'l', 'b', '2783', '3095', '3311']

3667c350159021532