D3313222132313113313132313232123313133313232233132233132313232211321   >>    D331322213231311331313231323212331313331323223313223313231323221132   <<    D3313222132313113313132313232123313133313232233132233132313232211323   >>      D3313222132313113313132313232123313133313232233132233132313232211322   >>