D1131323223313113313123132313231323132313231322331323223313221321   >>    D113132322331311331312313231323132313231323132233132322331322132   <<    D1131323223313113313123132313231323132313231322331323223313221323   >>      D1131323223313113313123132313231323132313231322331323223313221322   >>