C31231211111133131211113313331333133313331323223313331333133313331333112322321   >>    C3123121111113313121111331333133313331333132322331333133313331333133311232232   <<    C31231211111133131211113313331333133313331323223313331333133313331333112322323   >>      C31231211111133131211113313331333133313331323223313331333133313331333112322322   >>