using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("enter y =");

        var x = double.Parse(Console.ReadLine());

        double y;

        if (x>1)

        {

            Console.Write("x=");

            Console.WriteLine(y=3*x);

        }

        else

        Console.Write("x=");

        Console.WriteLine(y=3*x-3);

       }

    }