using System;

public class Program

{

    public static void Main()

    {

        int x=10,y=20;

        int a=2,b=4,c=3;

        float ft1 = 1.5f;

        char ch = 'x';

        string s = "hello world";

        Console.WriteLine("x: " +x);

        Console.WriteLine(s);

        Console.WriteLine(ch);

        Console.WriteLine(a);

        Console.WriteLine(x+y);

    }

}