\begin{problem}{Coordinates}{standard input}{standard output}{1 second}{256 megabytes}

Given a point $(x, y, z)$ in 3D space. Find the square of the distance from this point to the origin (i.e., to the point $(0, 0, 0)$).

\InputFile
The first line contains one integer $x$ ($-100 \leq x \leq 100$).

The second line contains one integer $y$ ($-100 \leq y \leq 100$).

The third line contains one integer $z$ ($-100 \leq z \leq 100$).

\OutputFile
Output one integer.

\Example

\begin{example}
\exmpfile{example.01}{example.01.a}%
\end{example}

\end{problem}

