using System;
public class Program
{
public static void Main()
Console.Write("Въведете число:");
var n = int.Parse(Console.ReadLine());
Console.Write("+");
for (var i = 0; i < n - 2; i++)
Console.Write("-");
for (var row = 0; row < n - 2; row++)
Console.Write("|");
}
Console.WriteLine("+");