using System;

class Product {
  public string Name;
  public double Price;
  public Product(string n, double p) { Name = n; Price = p; }
}

class Program {
  static void Main() {
    Product[] products = new Product[] {
      new Product("Keyboard", 40),
      new Product("Monitor", 220),
      new Product("Mouse", 25),
      new Product("Desk", 180)
    };
    int count = 0;
    double sum = 0;
    for (int i = 0; i < products.Length; i++) {
      if (products[i].Price > 50) {
        Console.WriteLine(products[i].Name);
        count++;
        sum += products[i].Price;
      }
    }
    Console.WriteLine("count = " + count);
    Console.WriteLine("sum   = " + sum);
    Console.WriteLine("avg   = " + (count > 0 ? sum / count : 0));
  }
}