public static void Main() { int num = int.Parse(Console.ReadLine()); List <Person> persons = new List <Person>(); for (int i = 0; i < num; i++) { string[] current = Console.ReadLine().Split(); Person holder = new Person(); holder.Name = current[0]; holder.Age = int.Parse(current[1]); persons.Add(holder); } Person.Above30(persons); }