Chef and Asteroids

Chef enjoys playing `Among Us` with the other Chefs in the kitchen. However, he struggles with the asteroids task. The task consists of $N$ asteroids where the coordinates of the $i^{th}$ asteroid are $(X_i, Y_i)$. In one second, each non-destroyed asteroid moves to the **left** by $1$ unit. Formally, if an asteroid's current position is $(X, Y)$, then, after $1$ second, it moves to the posi