using NCalc;

using System;

​

public class Program

{

public static double CalculateScore(double theta)

    {

        double roundedTheta = Math.Round(theta, 4, MidpointRounding.AwayFromZero);

        double result = 180 * (6658 - 0.6658) + 450;

​

        // Round down to the nearest tens place

        result = Math.Floor(result / 10) * 10;

​

        return Math.Clamp(result, 300, 900);

    }

​

}