D12121323331322331313232223132313232213231323223313113313233311232311   >>    D1212132333132233131323222313231323221323132322331311331323331123231   <<    D12121323331322331313232223132313232213231323223313113313233311232313   >>      D12121323331322331313232223132313232213231323223313113313233311232312   >>