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:
| Team 1 | Agg. | Team 2 | 1st leg | 2nd leg |
| --- | --- | --- | --- | --- |
| União da Madeira | 2–5 | Marítimo | 2–3 | 0–2 |
| Penafiel | 2–1 | Académica | 1–1 | 1–0 |
| Santa Clara | 3–2 | União de Leiria | 3–1 | 0–1 |
| Naval | 3–4 | Vitória de Setúbal | 1–2 | 2–2 |
| Moreirense | 4–3 | Beira-Mar | 2–2 | 2–1 |
| Portimonense | 2–2(5–4p) | Feirense | 1–0 | 1–2 |
| Estoril | 4–3 | Olhanense | 4–3 | 0–0 |
| Belenenses | 2–3 | Gil Vicente | 2–1 | 0–2 |
Question:
what winning team has the least number of letters?
Answer:
Estoril