D231123313223313132313232233131212132313231312323132313232212321   >>    D23112331322331313231323223313121213231323131232313231323221232   <<    D231123313223313132313232233131212132313231312323132313232212323   >>      D231123313223313132313232233131212132313231312323132313232212322   >>