public domain SimpleDomain {
  public main() {
    Console.WriteLine('Hello, Axum!');
  }
}

public domain SimpleDomain {
  public main() {
    int a = 5;
    int b = 10;
    Console.WriteLine(a + b);
  }
}

public domain ArrayDomain {
  public main() {
    int[] arr = {1, 2, 3, 4, 5};
    foreach (int i in arr) {
      Console.WriteLine(i);
    }
  }
}

public domain ThreadDomain {
  public agent ThreadAgent {
    public main() {
      Console.WriteLine('Hello, Axum!');
    }
  }
}

public domain ClassDomain {
  public class SimpleClass {
    private int x;
    public SimpleClass(int x) {
      this.x = x;
    }
  }
}

public domain AdvancedDomain {
  public agent AdvancedAgent {
    public main() {
      for (int i = 0; i < 5; i++) {
        Console.WriteLine(i);
      }
    }
  }
}