public static void Main()
string card = Console.ReadLine();
if (card.Equals("2") || card.Equals("3") || card.Equals("4") || card.Equals("5") || card.Equals("6") || card.Equals("7") || card.Equals("8")
|| card.Equals("9") || card.Equals("10")|| card.Equals("A") || card.Equals("J") || card.Equals("Q") || card.Equals("K"))
Console.WriteLine("yes");