D121213233313223313132322231323132313231333132233132313132313232331   >>    D12121323331322331313232223132313231323133313223313231313231323233   <<    D121213233313223313132322231323132313231333132233132313132313232333   >>      D121213233313223313132322231323132313231333132233132313132313232332   >>