This is an example programming model of ODMO program.

$$ \begin{align} \underset{x, y, z}{\max} & \quad xyz \\ \text{s.t.} & \quad (xy + xz) \leq a \\ & \quad yz \leq b \\ & \quad c_1 \leq \frac{x}{y} \leq c_2 \text{ with } c_1 \leq c_2\\ & \quad d_1 \leq \frac{z}{y} \leq d_2 \text{ with } d_1 \leq d_2 \end{align} $$

[Set] appropriate values below to describe your problem.

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