C r f q

C r f qC r f qC r f qC r f qC r f qC r f q
C r f qC r f qC r f qC r f qC r f qC r f q
C r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f qC r f q