[StartCode]
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp11
{
    internal class Program
    {
        static void Main(string[] args)
        {
            string[] fullName = new string[0];
            string[] position = new string[0];
            string menuOption;
            bool exit = false;

            while (exit == false)

            {
                Console.WriteLine("        МЕНЮ");
                Console.WriteLine();
                Console.WriteLine("1 - Добавить досье.\n2 - Список досье.\n3 - Удалить досье.\n4 - Поиск по фамилии.\n5 - Выход.");
                menuOption = Console.ReadLine();

                switch (menuOption)

                {
                    case "1":
                        addList(ref fullName, "Добавить ФИО :");
                        addList(ref position, "Добавить должность :");
                        break;
                    case "2":
                        showLists(fullName,position ,"Список досье :");
                        break;
                    case "3":
                        Console.Write("Какое досье удалить? :");
                        int number =Convert.ToInt32(Console.ReadLine());
                        deleteList(number,ref fullName);
                        deleteList(number,ref position);
                        break;
                    case "4":
                        Console.WriteLine("Поиск по фамилии : ");
                        string surname;
                        surname = Console.ReadLine();
                        searchSurname(fullName,position,surname);
                        break;
                    case "5":
                        exit = true;
                        break;
                }
            }
        }

        static void addList(ref string[] x, string text)
        {
            string[] tempX = new string[x.Length + 1];

            for (int i = 0; i < x.Length; i++)
            {
                tempX[i] = x[i];
            }

            Console.WriteLine(text);
            string newX = Convert.ToString(Console.ReadLine());
            tempX[tempX.Length - 1] = newX;
            x = tempX;
        }

        static void showLists( string[]x,string[]y,string text)
        {
            Console.WriteLine(text);

            for (int i = 0; i < x.Length; i++)
            {
                int indent = 1;
                Console.WriteLine((i + indent) + ") " + x[i] + " - " + y[i] + ".");
            }
        }

        static void deleteList(int x,ref string[] y)
        {
            for (int i = x - 1; i < y.Length - 1; i++)
            {
                y[i] = y[i + 1];
            }

            string[] tempY = new string[y.Length - 1];

            for (int i = 0; i < y.Length - 1; i++)
            {
                tempY[i] = y[i];
            }

            y = tempY;
        }

        static void searchSurname(string[] x,string[]y,string z)
        {
            for (int i = 0; i < x.Length; i++)
            {
                string[] words = x[i].Split(' ');

                for (int j = 0; j < words.Length; j++)
                {
                    if (words[j] == z)
                    {
                        Console.WriteLine(x[i] + " - " + y[i]);
                    }
                }
            }
        }
    }
}
[EndCode]