D12121212121313233313123231323223313132322331323132233132333112131   >>    D1212121212131323331312323132322331313232233132313223313233311213   <<    D12121212121313233313123231323223313132322331323132233132333112133   >>      D12121212121313233313123231323223313132322331323132233132333112132   >>