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, 4, ['1009', 'p', '661', 'P', '5449', '7657', 'p', '4751', '7547', 'L', '2671', 'P', '9999', 'p', '8869', '2061', '1623', 'V', '8685', 'r']