D1212132333132233131312323131323132322331323133313113313231333132233131   >>    D121213233313223313131232313132313232233132313331311331323133313223313   <<    D1212132333132233131312323131323132322331323133313113313231333132233133   >>      D1212132333132233131312323131323132322331323133313113313231333132233132   >>