public static void Main()
int days = int.Parse(Console.ReadLine());
string room = Console.ReadLine();
string feedback = Console.ReadLine();
case "room for one person":
if (feedback == "positive")
double payment = ((days-1)*18)*1.25;
Console.WriteLine($"{payment:f2}");
else if (feedback == "negative")
double payment = ((days-1)*18)*0.9;
Console.WriteLine($"{payment:f2}");
if (feedback == "positive")
double payment = (((days-1)*25)*0.7)*1.25;
Console.WriteLine($"{payment:f2}");
else if (feedback == "negative")
double payment = (((days-1)*25)*0.7)*0.9;
Console.WriteLine($"{payment:f2}");
case "president apartment":
if (feedback == "positive")
double payment = (((days-1)*35)*0.9)*1.25;
Console.WriteLine($"{payment:f2}");
else if (feedback == "negative")
double payment = (((days-1)*35)*0.9)*0.9;
Console.WriteLine($"{payment:f2}");
else if (days>10 && days<=15)
case "room for one person":
if (feedback == "positive")
double payment = ((days-1)*18)*1.25;
Console.WriteLine($"{payment:f2}");
else if (feedback == "negative")
double payment = ((days-1)*18)*0.9;
Console.WriteLine($"{payment:f2}");
if (feedback == "positive")
double payment = (((days-1)*25)*0.65)*1.25;
Console.WriteLine($"{payment:f2}");
else if (feedback == "negative")
double payment = (((days-1)*25)*0.65)*0.9;
Console.WriteLine($"{payment:f2}");
case "president apartment":
if (feedback == "positive")
double payment = (((days-1)*35)*0.85)*1.25;
Console.WriteLine($"{payment:f2}");
else if (feedback == "negative")
double payment = (((days-1)*35)*0.85)*0.9;
Console.WriteLine($"{payment:f2}");
case "room for one person":
if (feedback == "positive")
double payment = ((days-1)*18)*1.25;
Console.WriteLine($"{payment:f2}");
else if (feedback == "negative")
double payment = ((days-1)*18)*0.9;
Console.WriteLine($"{payment:f2}");
if (feedback == "positive")
double payment = (((days-1)*25)*0.5)*1.25;
Console.WriteLine($"{payment:f2}");
else if (feedback == "negative")
double payment = (((days-1)*25)*0.5)*0.9;
Console.WriteLine($"{payment:f2}");
case "president apartment":
if (feedback == "positive")
double payment = (((days-1)*35)*0.8)*1.25;
Console.WriteLine($"{payment:f2}");
else if (feedback == "negative")
double payment = (((days-1)*35)*0.8)*0.9;
Console.WriteLine($"{payment:f2}");