C3123121111113313121111331333133313223313331333133313221333132313321   >>    C312312111111331312111133133313331322331333133313331322133313231332   <<    C3123121111113313121111331333133313223313331333133313221333132313323   >>      C3123121111113313121111331333133313223313331333133313221333132313322   >>