where am I mistake?

Question

namespace Restart
{
class Program
{
static void Main(string[] args)
{
int num;
int age;
TestMethod(out num, out age);
Console.WriteLine(num,age);
Console.ReadKey();

}

static void TestMethod(out int x, out int y)
{
x = 12;
y = 2;

}

}
}

Answer 1

Console.WriteLine("num: {0}, age:{1}",num,age);