D12121323331322331311132313132313331313232233132323132322123221   >>    D1212132333132233131113231313231333131323223313232313232212322   <<    D12121323331322331311132313132313331313232233132323132322123223   >>      D12121323331322331311132313132313331313232233132323132322123222   >>