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.
13, 17, ['9729', '9795', '3087', '7313', 'L', '5303', '1953', '2173', '7355', '8423', 'd', '6427', '3645', 'w', '157', 'P', '7827', '6729', '8711', '9279', 'u', 'P', '1301', '8053', 'n']