Max and Electrical Panel

**This is an interactive problem.** Max has an electrical panel. He knows that there is an integer $x$ ($1 \le x \le N$) such that if the panel is connected to voltage greater or equal to $x$, it will break. However, he does not know the exact value of $x$. You must help Max determine $x$. You may perform operations of two types: - Connect the panel to voltage $y$, where $y$ is an arbitrary