static void Main(string[] args)
string product = Console.ReadLine();
string city = Console.ReadLine();
decimal quantity = Convert.ToDecimal(Console.ReadLine());
Console.WriteLine($"{(quantity * 0.50m):F1}");
Console.WriteLine($"{(quantity * 0.80m):F1}");
Console.WriteLine($"{(quantity * 1.20m):F1}");
Console.WriteLine(quantity * 1.45m);
if (product == "peanuts")
Console.WriteLine($"{(quantity * 1.60m):F1}"); ;
Console.WriteLine($"{(quantity * 0.40m):F1}");
Console.WriteLine($"{(quantity * 0.70m):F1}");
Console.WriteLine($"{(quantity * 1.15m):F1}");
Console.WriteLine(quantity * 1.30m);
if (product == "peanuts")
Console.WriteLine($"{(quantity * 1.50m):F1}");
Console.WriteLine($"{(quantity * 0.45m):F1}");
Console.WriteLine($"{(quantity * 0.70m):F1}");
Console.WriteLine($"{(quantity * 1.10m):F1}");
Console.WriteLine(quantity * 1.35m);
if (product == "peanuts")
Console.WriteLine($"{(quantity * 1.55m):F1}");