This is an example programming model of ODMO program.
$$
\begin{align}
\underset{x, y, z}{\max} & \quad f(x_1, x_2, x_3) \triangleq \{ a + x_1, x_1 + x_2^b x_3^c\} \\
\text{s.t.} & \quad a, b, c \in \mathbb{R}
\end{align}
$$
[Set] appropriate values below to describe your problem.
__________
__________
