D12121323331322331313232223132313231323133313223313231313111231   >>    D1212132333132233131323222313231323132313331322331323131311123   <<    D12121323331322331313232223132313231323133313223313231313111233   >>      D12121323331322331313232223132313231323133313223313231313111232   >>