D121213233313223313132322231323132313231333132233132313232233112111   >>    D12121323331322331313232223132313231323133313223313231323223311211   <<    D121213233313223313132322231323132313231333132233132313232233112113   >>      D121213233313223313132322231323132313231333132233132313232233112112   >>