C3123121111113313121111331333132212111133133313113313331322112121   >>    C312312111111331312111133133313221211113313331311331333132211212   <<    C3123121111113313121111331333132212111133133313113313331322112123   >>      C3123121111113313121111331333132212111133133313113313331322112122   >>