D121213233313223313132322231323223313233313232223132313231311311   >>    D12121323331322331313232223132322331323331323222313231323131131   <<    D121213233313223313132322231323223313233313232223132313231311313   >>      D121213233313223313132322231323223313233313232223132313231311312   >>