D231123132333132233131323223313231323133313132233132313231322121   >>    D23112313233313223313132322331323132313331313223313231323132212   <<    D231123132333132233131323223313231323133313132233132313231322123   >>      D231123132333132233131323223313231323133313132233132313231322122   >>