D121213233313132233132333131313132313232233131313233313231323222221   >>    D12121323331313223313233313131313231323223313131323331323132322222   <<    D121213233313132233132333131313132313232233131313233313231323222223   >>      D121213233313132233132333131313132313232233131313233313231323222222   >>