D1121323223313223313112132313231323132312323223313233313123121111   >>    D112132322331322331311213231323132313231232322331323331312312111   <<    D1121323223313223313112132313231323132312323223313233313123121113   >>      D1121323223313223313112132313231323132312323223313233313123121112   >>