D3313221123132313231323233231323223313231323221333132313311231211   >>    D331322112313231323132323323132322331323132322133313231331123121   <<    D3313221123132313231323233231323223313231323221333132313311231213   >>      D3313221123132313231323233231323223313231323221333132313311231212   >>