D12121323331322331313232223132313231311221123223313233313123232212331   >>    D1212132333132233131323222313231323131122112322331323331312323221233   <<    D12121323331322331313232223132313231311221123223313233313123232212333   >>      D12121323331322331313232223132313231311221123223313233313123232212332   >>