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.

Example Input: 5, 8, ['g', 'a', '2875', '9581', '3263', '3103', 'J', 'b', 'h']
Example Output: bJ30133623

Example Input: 3, 8, ['b', 'y', '8779', '3949', 'c', 'a', '111', '6649']
Example Output: 9466111ac94939778

Example Input: 2, 16, ['B', 'd', '227', '9237', 'n', '1373', '3021', 'E', '5775', '421', '8655', 'M', '915', 'H', '9243', '3799', 'P', 'T', '5239']
Example Output:
99733429H519M55681245775E12033731n7329722d