D12121212121313233313123231323223313132322331323132233131232331   >>    D1212121212131323331312323132322331313232233132313223313123233   <<    D12121212121313233313123231323223313132322331323132233131232333   >>      D12121212121313233313123231323223313132322331323132233131232332   >>