namespace ConsoleApplication11
{


    class data {

        public double x = 0;
        public double a = 0;
        public double b = 0;
        public void setA()
        {
            Console.WriteLine("Введите значение A ");
            a = double.Parse(Console.ReadLine());
        }
        public void setB()
        {
            Console.WriteLine("Введите значение b ");
            b = double.Parse(Console.ReadLine());
        }
        public void setX()
        {
            Console.WriteLine("Введите значение x ");
            x = double.Parse(Console.ReadLine());
        }
        public double getA()
        {
            return a;
        }

        public double getB()
        {
            return b;
        }
        public double getX()
        {
            return x;
        }


        public void calculations()
        {

         double    ch = Math.Cos(x - 3 * b) - Math.Pow((a * Math.Pow(x, 6) + Math.Pow(Math.E, a * x)), 2) + 0.3 * Math.Pow(10, -1.5) * x;
           double zn = 7.3 * Math.Pow(10, 7) * Math.Abs(x - Math.Pow(a, 5)) - Math.Tan(a + x) + Math.Sqrt((Math.Pow(Math.Sin(a), 2) + Math.PI)) - Math.Log(x, Math.E);
          double  d = Math.Abs(ch / zn);
           double c= Math.Sqrt(Math.Abs( Math.Log((d), Math.E)));

                        Console.WriteLine("OTVET :" + c);



            /*}public   bool a2 = true;
            public  bool b2 = true;
            public  bool c2 = false;
            public  double x2 =1.5 ;
            public double y2 = 2.5;
            public  void setA()
             * {Console.WriteLine("znachenie a") ;
             * a=bool.Parse(Console.ReadLine()); }
             * public  void setB()
             * {Console.WriteLine("znachenie b") ;
             * b=bool.Parse(Console.ReadLine()); }
             * public  void setC()
         * {Console.WriteLine("znachenie c") ;
         * c=bool.Parse(Console.ReadLine()); }
             * public void setY()
             * {Console.WriteLine("Znachenie y") ;
             * y= value ;
             * }
             *
             *
             *
             * public void AA()
            {
               bool z =  z = a2 || !c2 && x2 < 4.2 || y2 >= 3.5 && !(b2 || c2 && x2 > y2);

            Console.WriteLine("OTVET" + z) ;}

           */
        }






    }






    class Program
    {
        static void Main(string[] args)
        {
            data MyClass = new data();
            MyClass.setA();
            MyClass.setX();
            MyClass.setB();
            MyClass.calculations(); /*
                            * data MyClass = new data();
                            *  MyClass.setA();
                               MyClass.setB();
                                MyClass.setC();
                            *  MyClass.setY();
                            *   MyClass.setX();
                            *   MyClass.AA();






                            */


            Console.ReadKey() ;
        }
    }
}