C3123121111331312121111331333132313331333133313221211113313331122212321   >>    C312312111133131212111133133313231333133313331322121111331333112221232   <<    C3123121111331312121111331333132313331333133313221211113313331122212323   >>      C3123121111331312121111331333132313331333133313221211113313331122212322   >>