I can only get one mark for that question now, for identifying the odd nodes. I'm very annoyed. I don't want to have to retake this paper in the summer because of one question that, I thought, was intentionally changed a little to make you think. It asked us to use the route inspection problem, yeah that normally leads us to a Eularian graph, but it didn't tell us we had to finish at the same place, and my answer of 139 technically crosses all canals and is smaller than yours.
So, there's seven marks gone. What a stupid and unfair question.