public class p3_3
{
    public static void main(String args[])
    {
       int x=17;
       if(x<1)
           System.out.println("y="+x);
       else if(x<10)
                System.out.println("y="+(3*x-2));
            else
                System.out.println("y="+(4*x));
    }
}