D12121212121313233313123231323223313132322331323132233131312323131   >>    D1212121212131323331312323132322331313232233132313223313131232313   <<    D12121212121313233313123231323223313132322331323132233131312323133   >>      D12121212121313233313123231323223313132322331323132233131312323132   >>