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, 6, ['8767', '653', '7235', 'b', 'f', '241', 'Q', '4167', 'M', 'n', '5461', 'L', 'o', '397', 'b', '1341', '6017', '4287', '9287', '8263', 'W', '8425', 'P', '9471', 'O', '9859']