You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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.

1, 3, ['238', 'h', '92', 'U', '2799']
Solution: 29h832
Why? Here, concatenating all the elements between the 1st element and 3rd element and then reversing the string gives '29h832'.

New input: 5, 12, ['4877', 'w', '2803', 'y', 'v', 'l', 'Z', '8673', '1661', 'h', '5747', '9053', 'c', 'e', '2119', 'q', '647', '3385', 'y', '1783', 't', 'I', '5441', 'i', '8483', '4235', 'h', '2515', 'M']
Solution:
35097475h16613768Zlv