C1111133313331323223313331333133313231323132312111133131133132323223331   >>    C111113331333132322331333133313331323132313231211113313113313232322333   <<    C1111133313331323223313331333133313231323132312111133131133132323223333   >>      C1111133313331323223313331333133313231323132312111133131133132323223332   >>