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.
12, 18, ['I', '4851', 'P', '1289', '5371', 'p', '1219', 'M', '979', '6967', '2395', '6707', '8019', 'V', '8411', '7687', '163', 'i', 'x', 'X', '719', 'v']