using System;

public class Program

{

    public static void Main()

    {

        double age;

        Console.WriteLine ("enter age");

        age=double.Parse(Console.ReadLine());

        if (age>=17)

        Console.WriteLine ("license" ); // 17="license", 18="license", 15= nothing 

        else

          Console.WriteLine ("no license" ); // if the entered number(age) is less then 17 then "no license" 17="license", 18="license", 15= "no license"   

    }

}