Eclipse

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

namespace Exam03
{
    class Exam03
    {
        static void Main()
        {
            int n = int.Parse(Console.ReadLine());
            int frameWidth = 2 / n; //*
            int bridge = n - 1;
            for (int i = 1; i <= n; i++)
            {
                if (i == 1 || i == n)
                {
                    int starCount = (n * 2) - 2;
                    Console.Write(' ');
                    Console.Write(new string('*', starCount));
                    Console.Write(' ');
                    Console.Write(new string(' ', n));
                    Console.Write(new string('*', starCount));
                    Console.Write(' ');
                }
                else
                {
                    int slashCount = (n * 2) - 2;
                    Console.Write('*');
                    Console.Write(new string('/', slashCount));
                    Console.Write('*');
                    if (i == (n / 2) + 1)
                    {
                        Console.Write(new string('|', n - 1));
                    }
                    else
                    {
                        Console.Write(new string(' ', n - 1));
                    }
                    Console.Write('*');
                    Console.Write(new string('/', slashCount));
                    Console.Write('*');
                }
                Console.WriteLine();
            }
        }
    }
}