using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        var totalIterations = 10000;

        var cluster1 = new List<decimal>();     

        var clusterCenter1 = -10m;      

        var cluster2 = new List<decimal>();

        var clusterCenter2 = 10m;

        var I = GetElements();

        for (var iteration = 0; iteration < totalIterations; iteration++)

        {

            foreach(var i in I)

            {

                var c1 = Rho(clusterCenter1, i);

                var c2 = Rho(clusterCenter2, i);

                if (c1 < c2) cluster1.Add(i);

                else cluster2.Add(i);           

            }

            clusterCenter1 = GetNewCenter(clusterCenter1, cluster1);

            clusterCenter2 = GetNewCenter(clusterCenter2, cluster2);

            cluster1.Clear();

            cluster2.Clear();

            if (test) break;

        }

    }

    public static decimal[] GetElements() //I

    {

        throw new NotImplementedException();

    }

    public static decimal Rho(decimal clusterCenter, decimal i)

    {

        throw new NotImplementedException();

    }

    public static decimal GetNewCenter(decimal oldCenter, List<decimal> cluster)

        {

        throw new NotImplementedException();

    }

}