D1121323223313223313112132313231323123231323223313233313331313232333131   >>    D112132322331322331311213231323132312323132322331323331333131323233313   <<    D1121323223313223313112132313231323123231323223313233313331313232333133   >>      D1121323223313223313112132313231323123231323223313233313331313232333132   >>