C3123121111331312121111331333132313331323221211113313221123232311   >>    C312312111133131212111133133313231333132322121111331322112323231   <<    C3123121111331312121111331333132313331323221211113313221123232313   >>      C3123121111331312121111331333132313331323221211113313221123232312   >>