using System;

public class Program

{

    public static void Main()

    {

        int x = 1;

        int w = 2;  

            //float z;

        float a,b,c,d,e,rta;

        //z = ( (3*x) / (2*w ))  - ((( (8*x)*x)-w )/ 3);

        a = 3*x;

        b = 2*w;

        c= a/b;

        d= (8*x*x)-w;

        e= d/3;

        rta= c-e;

        Console.WriteLine(rta);

    }

}