Sam had never fully understood the points system in soccer (football), and felt that the scoring of goals should be encouraged. His idea is that 10 points should be awarded for a win, 5 points for a draw and 1 point for each goal scored, whatever the result of the match.
This was tried with three teams, Hubs, Dins and Rungs. Each team scored at least one goal in every mach and no team played another more than once. Hubs scored 8 points, Dins 14 points and Rungs scored 9 points.
How many total goals did the Rungs score?