C11111333133313232233133313331333131133132233133313113313123113121   >>    C1111133313331323223313331333133313113313223313331311331312311312   <<    C11111333133313232233133313331333131133132233133313113313123113123   >>      C11111333133313232233133313331333131133132233133313113313123113122   >>