зеброМетодЦвета

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

namespace ConsoleApp5
{
    class Program
    {
        static void Main(string[] args)
        {

            DrawSquare(3, 3, 0, 0, ConsoleColor.Red, ConsoleColor.Green);
            DrawSquare(5, 4, 10, 10, ConsoleColor.Yellow, ConsoleColor.Blue);
            DrawSquare(7, 2, 20, 3, firstLineColor: ConsoleColor.Magenta, secondLineColor: ConsoleColor.Cyan);

        }

        static void DrawSquare(int sizeX, int sizeY, int posX, int posY, ConsoleColor firstLineColor, ConsoleColor secondLineColor)
        {
            for (int x = 0; x < sizeX; x++)
            {
                for (int y = 0; y < sizeY; y++)
                {
                    Console.ForegroundColor = (x + y) % 2 == 0  ? secondLineColor : firstLineColor;
                    Console.SetCursorPosition(posX + x, posY + y);
                    Console.Write("#");
                }
            }
        }
    }




}