What is Output of this?

Question

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SoloLearn
{
class Program
{
static void Main(string[] args)
{
int x = 10;
double y = 20;
Console.WriteLine("x = {0}; y = {1}", x, y);
}
}
}

Answer 1

Output
x =10
y =20

Answer 2

x = 10; y = 20

Answer 3

X=10
Y=20

Answer 4

So what is your question?