static Sale[] ReadSales()
 {
     int n = int.Parse(Console.ReadLine());
     Sale[] sales = new Sale[n];
     for (int i = 0; i < n; i++)
         sales[i] = ReadSale();
     return sales;
 }
 static Sale ReadSale()
 {
     string[] salesInput = Console.ReadLine().Split(' ');
     Sale sale = new Sale()
     {
         Town = salesInput[0],
         Product = salesInput[1],
         Price = decimal.Parse(salesInput[2]),
         Quantity = decimal.Parse(salesInput[3])
     };
     return sale;
 }