Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Seat | Series 1 | Series 2 | Series 3 | Series 4 |
| --- | --- | --- | --- | --- |
| 1.0 | Ivan Pilný | Michael Rostock | Michael Rostock | Michael Rostock |
| 2.0 | Ondřej Bartoš | Ondřej Bartoš | Ivan Pilný | Margareta Křížová |
| 3.0 | Dana Bérová | Dana Bérová | Dana Bérová | Petra Rychnovská |
| 4.0 | Marta Nováková | Marta Nováková | Marta Nováková | John Vanhara |
| 5.0 | Tomio Okamura | Tomio Okamura | Tomio Okamura | Michal Hanus |
Question:
What is the seat number when Series 3 shows Dana Bérová?
Answer:
3.0