using System;

public class Program

{

    double a = 22.52;

    const int b = 20;

    string c = "Supichaya";

    char d = 'Y';

    bool e = true;

    public static void Main()

    {

        int f = 20;

        a=a+10;

        Console.WriteLine("value is {0}" , f );

        Console.WriteLine(a);

    }

    public void calculate()

    {  a = 30.5;

    }