What rules of ln to simplify this 6ln6 - 5ln5 - 4ln4 + 3ln3 into this 9ln3 - 2ln2 - 5ln5?

what rules of ln to simplify this 6ln6 - 5ln5 - 4ln4 + 3ln3 into this 9ln3 - 2ln2 - 5ln5?