using System;

public class Program

{

    static void formula ( int x )

    {

    int sum=0;

    sum=(x*x+3*x-2);

        Console.WriteLine("y= "+ sum);

    }

    public static void Main()

    {

        int x;

        string s;

        Console.WriteLine("Ievadiet x= ");

        s=Console.ReadLine();

        x=int.Parse(s);

        formula(x);

    }

}