D233123313113313132313231311112331323221323223313231323211123131   >>    D23312331311331313231323131111233132322132322331323132321112313   <<    D233123313113313132313231311112331323221323223313231323211123133   >>      D233123313113313132313231311112331323221323223313231323211123132   >>