9. A regular param 1 -sided polygon is inscribed in a circle, with different natural numbers written at its vertices. A pair of non-adjacent vertices of the polygon $A$ and $B$ is called interesting if, on at least one of the two arcs $A B$, all the numbers written at the vertices of the arc are greater than the numbers written at the vertices $A$ and $B$. What is the minimum number of interesting pairs of vertices that this polygon can have?

| param1 | Answer |
| :---: | :---: |
| 55 |  |
| 60 |  |
| 70 |  |
| 85 |  |
| 95 |  |
9. A regular param 1-gon is inscribed in a circle, with different natural numbers written at its vertices. A pair of non-adjacent vertices of the polygon $A$ and $B$ is called interesting if, on at least one of the two arcs $A B$, all the numbers written at the vertices of the arc are greater than the numbers written at the vertices $A$ and $B$. What is the smallest number of interesting pairs of vertices that this polygon can have?

| param1 | Answer |
| :---: | :---: |
| 55 | 52 |
| 60 | 57 |
| 70 | 67 |
| 85 | 82 |
| 95 | 92 |