public static void Main(string[] args) { Family family = new Family(); int n = int.Parse(Console.ReadLine() ?? throw new InvalidOperationException()); for (int i = 0; i < n; i++) { string[] data = Console.ReadLine()?.Split(" ", StringSplitOptions.RemoveEmptyEntries) ?? new string[] { }; Person person = new Person(data[0], int.Parse(data[1])); family.AddMember(person); } var olderMembers = family.GetOlderMembers(30); foreach (var member in olderMembers) { Console.WriteLine($"{member.Name} - {member.Age}"); } }