D23112313233313223313132322331323223313113313113132333132313123111   >>    D2311231323331322331313232233132322331311331311313233313231312311   <<    D23112313233313223313132322331323223313113313113132333132313123113   >>      D23112313233313223313132322331323223313113313113132333132313123112   >>