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: 3, 8, ['s', '8395', '7689', 'x', 'P', '5953', 'X', 'D']
Example Output: DX3595Px9867

Example Input: 2, 8, ['7283', '1463', 'A', '6121', 'H', '173', '8829', 'V']
Example Output: V9288371H1216A3641

Example Input: 4, 7, ['T', '3227', 'X', '7175', 'X', 'g', 'p', 'u', 'k', '4737', 'U', 'K']
Example Output:
pgX5717