Exam 2. Eclipse

namespace _3.Eclipse
{
    using System;

    public class Eclipse
    {
        public static void Main(string[] args)
        {
            checked
            {
                int height = int.Parse(Console.ReadLine());

                int widthLenses = (2 * height) - 2;
                int widthBridge = height - 1;
                string lensesStr = new string('/', widthLenses);
                lensesStr = '*' + lensesStr + '*';
                for (int row = 0; row < height; row++)
                {
                    string spacesBetweenFrames;
                    if (row == 0 || row == height - 1)
                    {
                        string asterisksSeq = new string('*', widthLenses);
                        spacesBetweenFrames = new string(' ', height + 1);
                        Console.WriteLine(" {0}{1}{0}", asterisksSeq, spacesBetweenFrames);
                    }
                    else if (row == height / 2)
                    {
                        string bridgeStr = new string('-', widthBridge);
                        Console.WriteLine("{0}{1}{0}", lensesStr, bridgeStr);
                    }
                    else
                    {
                        spacesBetweenFrames = new string(' ', widthBridge);
                        Console.WriteLine("{0}{1}{0}", lensesStr, spacesBetweenFrames);
                    }
                }
            }
        }
    }
}