D3311222132313331313132313223313232233132313232213132313232212111   >>    D331122213231333131313231322331323223313231323221313231323221211   <<    D3311222132313331313132313223313232233132313232213132313232212113   >>      D3311222132313331313132313223313232233132313232213132313232212112   >>