DressPattern

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

namespace _03.Task3
{
    class DressPattern
    {
        static void TopPartOfDress(int n)
        {
            int underscore;
            int stars = 2;
            underscore = (12 * n) / 3;
            Console.WriteLine("{0}.{0}.{0}",new string('_',underscore));
            for (int row = 0; row < 3*n-1; row++)
            {
                if (underscore==2)
                {
                    break;
                }
                underscore -= 2;
                Console.WriteLine("{0}.{1}.{0}.{1}.{0}", new string('_', underscore),new string('*', stars));
                stars += 3;
            }
            Console.WriteLine(".{0}..{0}.", new string('*', stars));
        }

        static void MiddlePartOfDress(int n)
        {
            int dot = 3 * n;
            int underscore;
            underscore = (12 * n);
            for (int i = 0; i < n; i++)
            {
                Console.WriteLine(".{0}.", new string('*', underscore));
            }
            underscore = (12 * n + 2) - 2 * dot;
            Console.WriteLine("{0}{1}{0}", new string('.', dot), new string('*', underscore));
        }
        static void BottomPartOfDress(int n)
        {
            int dot = 3 * n;
            int underscore = 3 * n;
            int letter =  (12 * n + 2) - 2 * underscore;
            for (int i = 0; i < n; i++)
            {
                Console.WriteLine("{0}{1}{0}", new string('_', underscore), new string('o', letter));
            }
            underscore = 3 * n;
            int stars = (12 * n ) - 2 * underscore;
            for (int i = 0; i < 3 * n; i++)
            {
                Console.WriteLine("{0}.{1}.{0}", new string('_', underscore), new string('*', stars));
                underscore--;
                stars+=2;
            }
            Console.WriteLine(new string('.', 12 * n + 2));
        }

        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            TopPartOfDress(n);
            MiddlePartOfDress(n);
            BottomPartOfDress(n);
        }
    }
}