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, 13, ['v', 'h', '1977', 'A', '3131', 'V', 'r', '4357', 'i', '9699', 'R', 'a', 'y', '4271', '1479', 'M', 'g', 'H', 'Y', 'L', 'A', '6131', '1447', '8769', 'R', '7375', '9735', '8489', '2241', 'U']