D12121323331322331313232223132313231333132313223313232233312321   >>    D1212132333132233131323222313231323133313231322331323223331232   <<    D12121323331322331313232223132313231333132313223313232233312323   >>      D12121323331322331313232223132313231333132313223313232233312322   >>