Need help to do this problem (discrete structures)

Exercise 4: Write the following argument using propositional wffs, then prove that the argument is valid using a proof sequence. (15 points) If DeWayne is not tall, then Jayden is not DeWayne's brother. If DeWayne is tall, then Trevor is DeWayne's brother. Therefore, if jayden is DeWayne's brother, then Trevor is DeWayne's brother. Hint: you can use D,J,T as the statement letters D: DeWayne is tall. J : Jayden is DeWayne's brother T: Trevor is DeWayne's brother