using System;

public class Program

{

    public static void Main()

    {

        long mass;

        long awnser;

        Console.WriteLine("input mass");

    //90,000,000,000 

    mass = Convert.ToInt64 (Console.ReadLine()  );

        awnser = mass * 90000000000 ;

        Console.WriteLine("the awnser is " + awnser + " j's");

    }

}