C# question any help is appreciated. How to fix the error and what is the output of the code?

Question

using System;

namespace test
{
class MainClass
{
static int Test(out int x,int y=4){
x=6;
return x*y;
}
static void Main(string []args){
int a;
int z = Test (out a);
Console.WriteLine (a+z);
}
Console.ReadLine(); invalid token '(' in class,struct,or interface member declaration
}
}

Answer 1

Not an expert at C#, but you are calling a function outside of main?