using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication32
{
    public class Program
    {
        static void Main(string[] args)
        {
            Journal studentsBase = new Journal();
            Console.WriteLine("Введите имя студента: ");
            string firstname = Console.ReadLine();
            Console.WriteLine("Введите фамилию: ");
            string lastname = Console.ReadLine();
            studentsBase.Addstudent(firstname, lastname);
            Student x = studentsBase.Search(firstname, lastname);
            Console.WriteLine(x);
        }
    }

    class Journal
    {
        public List<Student> students = new List<Student>();

        public void Addstudent(string studentFname, string studentLname)
        {
            Student student = new Student();

            student.firstname = studentFname;
            student.lastname = studentLname;
            students.Add(student);
        }

        public Student Search(string firstname, string lastname)
        {
            Student stud;
            stud = new Student();
            foreach (Student i in students)
            {
                if (i.firstname == firstname || i.lastname == lastname)
                {
                    stud = i;
                    Console.WriteLine(stud);
                }
                else
                    Console.WriteLine("Поиск не дал результата.");
            }
            return stud;
        }
    }

    public class Student
    {
       public string firstname;
       public string lastname;
    }
}