public static void Main()
int n = int.Parse(Console.ReadLine());
Console.WriteLine(new string('|', n*2+2));
Console.WriteLine(new string ('+', n*2+2));
Console.Write(new string('|', n-2));
Console.Write(new string('|', n - 2));
for (int i = 4; i < n; i++)
Console.WriteLine(new string('|', n * 2 + 2));
for (int i = 0; i < 2; i++)
Console.Write(new string('/', n - 3));
Console.Write(new string(' ', 4));
Console.Write(new string('\\', n - 3));
Console.Write(new string(' ', n-2));
Console.Write(new string('/', 5));