B

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace ZMEYKA
{
    class CONTROLLER
    {
    }

    abstract class BLOCK
    {
        public int XLoc;
        public int YLoc;

    }

    class SnakeBlock : BLOCK
    {
        bool head;
        static Color color = Color.Green;
        Byte direction;
        SnakeBlock next;
        SnakeBlock previous;
        public SnakeBlock( bool head, Byte direction, SnakeBlock next, SnakeBlock previous, int XLoc, int YLoc)
        {
            this.direction = direction;
            this.head = head;
            this.next = next;
            this.previous = previous;
            this.XLoc = XLoc;
            this.YLoc = YLoc;

        }
        public void draw(Graphics g)
        {
            g.DrawRectangle(new Pen(Color.Green), XLoc, YLoc, 50, 50);
            g.FillRectangle(new SolidBrush(Color.Green), XLoc, YLoc, 50, 50);
        }

    }

    class WallBlock : BLOCK
    {

    }

    class FoodBlock : BLOCK
    {

    }
}