C3123121111331312121111331333132313331333133313232212111111331333132311211   >>    C312312111133131212111133133313231333133313331323221211111133133313231121   <<    C3123121111331312121111331333132313331333133313232212111111331333132311213   >>      C3123121111331312121111331333132313331333133313232212111111331333132311212   >>