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:
| Rank | Canton | Highest point | Highest elevation | Lowest point | Lowest elevation |
| --- | --- | --- | --- | --- | --- |
| 1.0 | Valais | Monte Rosa (Dufourspitze) | m (ft) | Lake Geneva | m (ft) |
| 2.0 | Berne | Finsteraarhorn | m (ft) | Aar river, Solothurn border | m (ft) |
| 3.0 | Graubünden | Piz Bernina | m (ft) | Moesa river, Ticino border | m (ft) |
| 4.0 | Uri | Dammastock | m (ft) | Lake Lucerne | m (ft) |
| 5.0 | Glarus | Tödi | m (ft) | Linth river, St. Gallen border | m (ft) |
| 6.0 | Ticino | Rheinwaldhorn | m (ft) | Lake Maggiore | m (ft) |
| 7.0 | St. Gallen | Ringelspitz | m (ft) | Lake Constance | m (ft) |
| 8.0 | Obwalden | Titlis | m (ft) | Lake Lucerne | m (ft) |
| 9.0 | Vaud | Diablerets | m (ft) | Lake Geneva | m (ft) |
| 10.0 | Nidwalden | Rotstöckli | m (ft) | Lake Lucerne | m (ft) |
| 11.0 | Schwyz | Bös Fulen | m (ft) | Lake Zurich | m (ft) |
| 12.0 | Appenzell Ausserrhoden | Säntis | m (ft) | Lutzenberg | m (ft) |
| 12.0 | Appenzell Innerrhoden | Säntis | m (ft) | Appenzell Ausserrhoden and St. Gallen border | m (ft) |
| 14.0 | Fribourg | Vanil Noir | m (ft) | Lake Neuchâtel | m (ft) |
| 15.0 | Lucerne | Brienzer Rothorn | m (ft) | Reuss River , Zug and Aargau border | m (ft) |
| 16.0 | Zug | Wildspitz | m (ft) | Reuss River , Zurich border | m (ft) |
| 17.0 | Neuchâtel | Chasseral Ouest | m (ft) | Lake Biel | m (ft) |
| 18.0 | Solothurn | Hasenmatt | m (ft) | Birs , Basel-Land border | m (ft) |
| 19.0 | Jura | Mont Raimeux | m (ft) | Allaine river, national border | m (ft) |
| 20.0 | Zurich | Schnebelhorn | m (ft) | Rhine river, national border | m (ft) |
| 21.0 | Basel-Country | Hinteri Egg | m (ft) | Birs river, Basel-Stadt border | m (ft) |
| 22.0 | Thurgau | Hohgrat (Groot) | m (ft) | Thur River , Zurich border | m (ft) |
| 23.0 | Schaffhausen | Hagen (Randen) | m (ft) | Rhine river, Zurich border | m (ft) |
| 24.0 | Aargau | Geissfluegrat | m (ft) | Rhine river, national border | m (ft) |
| 25.0 | Basel-City | St. Chrischona | m (ft) | Rhine river, national border | m (ft) |
| 26.0 | Geneva | Les Arales | m (ft) | Rhone river, national border | m (ft) |
Question:
Wich rank is given to the Canton of Schaffhausen?
Answer:
23.0