Can I get a SAS program for this?

Given the parametric programming model below; explain the coefficients of the objective function; find the optimal solution and objective value for the parametric problem and report the minimum and maximum values for theta; find the optimal solution and objective value when theta is 5; and find the optimal solution and objective value for the original form of the problem.

Maximize Z() = (10-)x₁ + (12+)x₂ + (7+2)x₃

subject to

x₁ + 2x₂ + 2x₃ 30

x₁ + x₂ + x₃ 20

and

x₁ 0, x₂ 0, x₃ 0.