D12121323331322331311132313132313331313232233132322231333132313232223221   >>    D1212132333132233131113231313231333131323223313232223133313231323222322   <<    D12121323331322331311132313132313331313232233132322231333132313232223223   >>      D12121323331322331311132313132313331313232233132322231333132313232223222   >>