D12121323331322331311132313132313331313232233132323132313221211   >>    D1212132333132233131113231313231333131323223313232313231322121   <<    D12121323331322331311132313132313331313232233132323132313221213   >>      D12121323331322331311132313132313331313232233132323132313221212   >>