D3313222132313113313132313232123313132322331323331313223313231323221321   >>    D331322213231311331313231323212331313232233132333131322331323132322132   <<    D3313222132313113313132313232123313132322331323331313223313231323221323   >>      D3313222132313113313132313232123313132322331323331313223313231323221322   >>