C111113331333132322331333133313331311331323133313121111131212121   >>    C11111333133313232233133313331333131133132313331312111113121212   <<    C111113331333132322331333133313331311331323133313121111131212123   >>      C111113331333132322331333133313331311331323133313121111131212122   >>