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.
6, 13, ['4055', 'R', 'u', '6475', 'l', '3555', '9431', '7187', 'P', '7529', 'E', '199', '9609', 'p', '6623', '7415', 'k', '3401', '2095', '7677', 'N', '7439', 'L', 'F', 'S', 'v', '4235', 'x', 'L', '321']