D1121323223313223313123232332313231323231323132333132313132333111   >>    D112132322331322331312323233231323132323132313233313231313233311   <<    D1121323223313223313123232332313231323231323132333132313132333113   >>      D1121323223313223313123232332313231323231323132333132313132333112   >>