C1111133313331323223313331333133313331323133313331333233232311111   >>    C111113331333132322331333133313331333132313331333133323323231111   <<    C1111133313331323223313331333133313331323133313331333233232311113   >>      C1111133313331323223313331333133313331323133313331333233232311112   >>