fd1a1 ff1a1.v ff1a1.u ff1a1.q f1a1.v f1a1.u f1a1.q f1a2.v f1a2.u f1a2.q fd1a2 ff1a2.v ff1a2.u ff1a2.q f1a3.v f1a3.u f1a3.q f1a4.v f1a4.u f1a4.q