namespace _5.FilterByAge
{
    class Student
    {
        public Student(string name, int age)
        {
            Name = name;
            Age = age;
        }
        public string Name { get; set; }
        public int Age { get; set; }

        internal class Program
        {
            static void Main(string[] args)
            {
                int n = int.Parse(Console.ReadLine());
                List<Student> students = new List<Student>();

                for (int i = 0; i < n; i++)
                {
                    string[] input = Console.ReadLine().Split(", ");
                    string name = input[0];
                    int age = int.Parse(input[1]);

                    Student student = new Student(name, age);
                    students.Add(student);

                }
                int age2 = int.Parse(Console.ReadLine());
                string filterType = Console.ReadLine();

                Func<Student, bool> filter = GetFilter(filterType, age2);
                students = students.Where(filter).ToList();

                Func<Student, string> formatter = GetFormatter(Console.ReadLine());
                foreach (Student student in students)
                {
                    Console.WriteLine(formatter(student));
                }

                Func<Student, string> GetFormatter(string type)
                {
                    switch (type)
                    {
                        case "name":
                            return s => s.Name;
                        case "age":
                            return s => s.Age.ToString();
                        case "name age":
                            return student => $"{student.Name} {student.Age}";
                        default:
                            return null;
                    }
                }

                Func<Student, bool> GetFilter(string type, int age)
                {
                    if (type == "older")
                    {
                        return s => s.Age > age;
                    }
                    else
                    {
                        return s => s.Age < age;
                    }
                }
            }
        }
    }
}