C11111333133313232233133313331333131133132313311211111211111212111113233121   >>    C1111133313331323223313331333133313113313231331121111121111121211111323312   <<    C11111333133313232233133313331333131133132313311211111211111212111113233123   >>      C11111333133313232233133313331333131133132313311211111211111212111113233122   >>