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.
10, 19, ['8307', '4431', 'M', '9823', 'n', '4879', '1271', 'F', 'c', 'f', '2273', '6065', '5271', 'I', '1435', 'z', '9439', 'A', '229', 'r', '5007', 'S', '7433', 'm']