C3123121111331312121111331333132313331333132233132333112313232321   >>    C312312111133131212111133133313231333133313223313233311231323232   <<    C3123121111331312121111331333132313331333132233132333112313232323   >>      C3123121111331312121111331333132313331333132233132333112313232322   >>