15_17

using System;

namespace Lab15{
    class Program{
        static void Main(string[] args){
            double x = double.Parse(Console.ReadLine());
            double y = double.Parse(Console.ReadLine());
            Console.WriteLine("{0}", f(x, y) * Math.Log(f(x, 1)));
            double temp1 = 0;
            f1(x, y, ref temp1);
            double temp2 = 0;
            f1(x, 1.0, ref temp2);
            Console.WriteLine("{0}", temp1 * Math.Log(temp2));
            f2(x, y, out temp1);
            f2(x, 1.0, out temp2);
            Console.WriteLine("{0}", temp1 * Math.Log(temp2));
            Console.ReadKey();
        }
        static double f(double x, double y){
            return x * x + y;
        }
        static void f1(double x, double y, ref double z1){
            z1 = x * x + y;
        }
        static void f2(double x, double y, out double z1){
            z1 = x * x + y;
        }
    }
}