using System;

using System.Collections.Generic;

using System.Linq;

​

public class Kata

{

    public static void Main()

    {

        int [][] test = new int[][] {new int[]{18,20}, new int[]{45, 2}, new int[]{61, 12}, new int[]{36, 6}};

        var result = OpenOrSenior(test);

        result.ToList().ForEach(i => Console.WriteLine(i.ToString()));

    }

    public static IEnumerable<string> OpenOrSenior2(int[][]data)

    {

        return data.Select(member => member[0] >= 55 && member[1] > 7 ? "Senior" : "Open").ToList();

    }

    public static IEnumerable<string> OpenOrSenior(int[][]data)

    {

        var prospects = data.Select(x => new ProspectData(x)).ToList();

        return prospects.Select(x => x.IsSenior() ? "Senior" : "Open");

    }

​

    public class ProspectData

    {

        public ProspectData(int[] stupidData)

        {

            Age = stupidData[0];

            Handicap = stupidData[1];

        }

        public bool IsSenior(){

            return Age >= 55 && Handicap > 7;

        }

        public int Handicap {get; set;}

        public int Age {get; set;}

    }

}