D3313221123132313231323233231323223313231323221333131323132313232311   >>    D331322112313231323132323323132322331323132322133313132313231323231   <<    D3313221123132313231323233231323223313231323221333131323132313232313   >>      D3313221123132313231323233231323223313231323221333131323132313232312   >>