C3123121111331312121111331333132313331333133313331311331323211211   >>    C312312111133131212111133133313231333133313331333131133132321121   <<    C3123121111331312121111331333132313331333133313331311331323211213   >>      C3123121111331312121111331333132313331333133313331311331323211212   >>