Q4: Symmetry
Your compass is your best friend; even as the storm tosses your ship like a wayward duck, it always keeps its cool. It's almost as reliable as the good ol' sun, which always shows itself at daybreak no matter how fierce the gale. As you look back at your sundial before approaching the beautiful island, you marvelled at the beautiful shadow triangle it forms. Looking at the shadow, you hear three geniuses in your group, Sroyon, Debmalya, and Satwata, in intense conversation. You find out that they are arguing about the following problem.
Consider an arbitrary triangle on the plane. Let $n$ be a possible number of laminar axes of symmetry the triangle may have. Find out all the possible values of $n$.
Arrange the possible values of $n$ in ascending order, and concatenate them; what is the result? For example, if you think that the possible values of $n$ are $10$, $8$, $9$, and $3$, then your answer should be $38910$.
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