public static void Main()
var town = Console.ReadLine();
var product = Console.ReadLine();
var num = int.Parse(Console.ReadLine());
if(product == "coffee") Console.WriteLine(num*0.5);
else if (product == "water") Console.WriteLine(num*0.8);
else if (product == "beer") Console.WriteLine(num*1.2);
else if (product == "sweets") Console.WriteLine(num*1.45);
else if (product == "peanuts") Console.WriteLine(num*1.6);
else Console.WriteLine("Wrong product");
if(product == "coffee") Console.WriteLine(num*0.4);
else if (product == "water") Console.WriteLine(num*0.7);
else if (product == "beer") Console.WriteLine(num*1.15);
else if (product == "sweets") Console.WriteLine(num*1.30);
else if (product == "peanuts") Console.WriteLine(num*1.50);
else Console.WriteLine("Wrong product");
if(product == "coffee") Console.WriteLine(num*0.45);
else if (product == "water") Console.WriteLine(num*0.70);
else if (product == "beer") Console.WriteLine(num*1.10);
else if (product == "sweets") Console.WriteLine(num*1.35);
else if (product == "peanuts") Console.WriteLine(num*1.55);
else Console.WriteLine("Wrong product");