D12121212121313233313123231323223313132322331323223313111122331   >>    D1212121212131323331312323132322331313232233132322331311112233   <<    D12121212121313233313123231323223313132322331323223313111122333   >>      D12121212121313233313123231323223313132322331323223313111122332   >>