D12121323331322331313232223132313231333132313223313231232313232233221   >>    D1212132333132233131323222313231323133313231322331323123231323223322   <<    D12121323331322331313232223132313231333132313223313231232313232233223   >>      D12121323331322331313232223132313231333132313223313231232313232233222   >>