C3123121111331312121111331333132313331333133313331333112121111123232233131   >>    C312312111133131212111133133313231333133313331333133311212111112323223313   <<    C3123121111331312121111331333132313331333133313331333112121111123232233133   >>      C3123121111331312121111331333132313331333133313331333112121111123232233132   >>