C111113331333132322331333133313331311331311331323132313121212111   >>    C11111333133313232233133313331333131133131133132313231312121211   <<    C111113331333132322331333133313331311331311331323132313121212113   >>      C111113331333132322331333133313331311331311331323132313121212112   >>