using System;

​

namespace EXXX

 {

public class Program

{

    public static void Main()

    {

    x=-4.5;

        double y=0.75 Math.Pow(10, -4);

        double z=3.5   Math.Pow(x10, 2);

    double  u=-55.6848;

    double  v= 1 + Math.Sin(a)

        Console.WriteLine(b);

   //Console.ReadLine();

                  }

              }

         }

​