D3311222132313331313132313223313232233132313232213132313231323321   >>    D331122213231333131313231322331323223313231323221313231323132332   <<    D3311222132313331313132313223313232233132313232213132313231323323   >>      D3311222132313331313132313223313232233132313232213132313231323322   >>