Draw_Filled_Square_(Methods)

using System;

public class Program
{
    public static void Main()
    {
        int n = int.Parse(Console.ReadLine());
        Print(n);
    }

    static void Dash(int n) {
        int width = n * 2;
        string dash = new string('-', width);
        Console.WriteLine(dash);
    }

    static void DashAndSlash(int n) {
        Console.Write('-');
        for (int i = 1; i < n; i++) {
            Console.Write("\\/");
        }
        Console.WriteLine('-');
    }

    static void Print(int n) {
        Dash(n);
        for (int i = 0; i < n - 2; i++) {
            DashAndSlash(n);
        }
        Dash(n);
    }
}