using System;

using System.Collections.Generic;

using System.Linq;

​

public class Node

{

    public int X {get; set;}

    public int Y {get; set;}

    public Node(int X, int Y)

    {

        this.X = X;

        this.Y = Y;

    }

}

​

public class Field

{

    public SortedSet<Node> FieldOfNodes

    {get; set;}

    public const int SIZE_OF_FIELD = 36;

    public Field(SortedSet<Node> field)

    {

        this.FieldOfNodes = field;

    }

    public SortedSet<Node> CreatingField()

    {

        Random rand = new Random();

        int sideSize = (int)(Math.Sqrt(SIZE_OF_FIELD));

        for (int i = 0; i <= sideSize; i++)

        {

            Node node = new Node(rand.Next(sideSize+1), rand.Next(sideSize+1));

        }

    }

}

​

public class Program

{

    public static void Main()

    {

        int SIZE_OF_FIELD = 36;

        int sideSize = (int)(Math.Sqrt(SIZE_OF_FIELD));

        Random rand = new Random();

        SortedSet<Node> field = new SortedSet<Node>();

        for (int i = 0; i <= sideSize; i++)

        {

            Node node = new Node(rand.Next(sideSize+1), rand.Next(sideSize+1));

            field.Add(node);

        }

    }

}