D3313221123132313231323233231323223313231323221333132313223311231   >>    D331322112313231323132323323132322331323132322133313231322331123   <<    D3313221123132313231323233231323223313231323221333132313223311233   >>      D3313221123132313231323233231323223313231323221333132313223311232   >>