What is code launguish C#

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C#

The manager performs the following tasks:
1- Adding a new employee;
2- Approving the employee's payments for lunch meals and regular invoices, provided that it does not exceed the amount of each
Including 5000 liras per day. A schedule of invoices is sent
On the twentieth of each month to the principal for the past 30 days;
3 - Calculation of the average daily payments for each employee;
4- Calculating the monthly amount that must be paid to each employee, as the monthly salary is combined with the daily average
For payments multiplied by the number of days of the month;
5- Calculating the annual performance bonus for employees, as there are two types of employees, permanent and contracted. Done
Classifying all employees into three categories (A), (B) and (C.) Administrative personnel are placed in Category (A) while
Non-management employees are placed in category (b) or category (c).
Employees with less than nine months of service are not eligible for the award. The amount of the reward is determined
For employees who qualify for the bonus according to the number of points they have obtained, the points value ranges between 1
And 100, as follows:
Points
Number of monthly salaries (bonus)
> = 80---------------------------------------------------

--------------------- 2
65-79
------------------ 1.0
50-64
------------------ 1
<50
------------------------ 5
6- View a list of all employees, their numbers and names;
7- View a list of all employees, their numbers, and the daily average of payments for each of them during one of the months.

Write a C Sharp language program

What I have tried:

<pre lang="C#">using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication4
{
    class Program
    {
        static void Main(string[] args)
        {
            int x;
            Console.WriteLine("1 : employer");
            Console.WriteLine("2 : employee");
            Console.WriteLine("3 : exit");
            
           x=int.Parse(Console.ReadLine());

           if (x == 1)
           {
               Console.WriteLine("you are employer");
             
               string username, password;
               int ctr = 0;
               Console.Write("\n\nCheck username and password :\n");
               Console.Write("N.B. : Default user name and password is :abcd and 1234\n");
               Console.Write("------------------------------------------------------\n");

               do
               {
                   Console.Write("Input a username: ");
                   username = Console.ReadLine();

                   Console.Write("Input a password: ");
                   password = Console.ReadLine();

                   if (username != "abcd" || password != "1234")
                       ctr++;
                   else
                       ctr = 1;

               }
               while ((username != "abcd" || password != "1234") && (ctr != 3));

               if (ctr == 3)
                   Console.Write("\nLogin attemp three or more times. Try later!\n\n");
               else
                   Console.Write("\nThe password entered successfully!\n\n");

               // Type your Employee Name and press enter
               Console.WriteLine("Employee Name:");

               // Create a string variable and get user input from the keyboard and store it in the variable
               string EmployeeName = Console.ReadLine();

               // Print the value of the variable (userName), which will display the input value
               Console.WriteLine("Employee Name is: " + EmployeeName);



               
           }
           if (x == 2)
           {
               Console.WriteLine("you are employee");
               string username, password;
               int ctr = 0;
               Console.Write("\n\nCheck username and password :\n");
               Console.Write("N.B. : Default user name and password is :abcd and 1234\n");
               Console.Write("------------------------------------------------------\n");

               do
               {
                   Console.Write("Input a username: ");
                   username = Console.ReadLine();

                   Console.Write("Input a password: ");
                   password = Console.ReadLine();

                   if (username != "a12345678" || password != "1234")
                       ctr++;
                   else
                       ctr = 1;

               }
               while ((username != "a12345678" || password != "1234") && (ctr != 3));

               if (ctr == 3)
                   Console.Write("\nLogin attemp three or more times. Try later!\n\n");
               else
                   Console.Write("\nThe password entered successfully!\n\n");



           }
           if (x == 3)
           {
               Console.WriteLine("good bye");
               
           }

            
        }
    }
}