D1121323223313223313112132313231323123231323223313233313331323221331123233311   >>    D112132322331322331311213231323132312323132322331323331333132322133112323331   <<    D1121323223313223313112132313231323123231323223313233313331323221331123233313   >>      D1121323223313223313112132313231323123231323223313233313331323221331123233312   >>