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

public class Test
{
	public static void Main()
	{
		int[] a = Enumerable.Range(1,14).ToArray();
		int maxlen = a.Length/2;
		var res = MakePairs(a, maxlen);
		Console.WriteLine(res[res.Count-1]);
	}
	
	static List<Tuple<NodeList,NodeList>> MakePairs(int[] nums, int maxlen)
{
	var sums = new List<NodeList>();
	for(int i = 0; i < nums.Length; i++)
	{
		var num = nums[i];
		for(int j = sums.Count - 1; j >= 0; j--)
		{
			var list = sums[j];
			if(list.Length >= maxlen)
				continue;
			var node = new Node { Number = num, Next = list.First };
			var nodeList = new NodeList { First = node, Length = list.Length + 1, Sum = list.Sum + num };
			sums.Add(nodeList);
		}
		sums.Add(new NodeList { First = new Node { Number = num }, Length = 1, Sum = num });
	}
//	string.Join(",", sums.Select(x => x.Sum.ToString()).ToArray() ).Dump();
	sums.Sort((x,y) => x.Sum.CompareTo(y.Sum));
	var res = new List<Tuple<NodeList,NodeList>>();
	for(int i = 0; i < sums.Count; i++)
		for(int j = i + 1; j < sums.Count; j++)
		{
			if(sums[i].Sum != sums[j].Sum)
				break;
			res.Add(Tuple.Create(sums[i], sums[j]));
		}
	return res;
}

class Node
{
	public int Number { get; set; }
	public Node Next { get; set; }
//	public Node(int number, Node next = null)
//	{
//		Number = number;
//		Next = next;
//	}
}

class NodeList
{
	public Node First { get; set; }
	public int Length { get; set; }
	public int Sum { get; set; }
	
	public override string ToString()
	{
		var sb = new StringBuilder();
		var cur = First;
		for(int i = 0; i < Length; i++)
		{
			sb.Append(cur.Number.ToString());
			sb.Append(',');
			cur = cur.Next;
		}
		if(sb.Length > 0)
			sb.Length -= 1;
		return sb.ToString();
	}
//	public NodeList(Node first, int length, int sum)
//	{
//		First = first;
//		Length = length;
//		Sum = sum;
//	}
}

class Result
{
	public NodeList First { get; set; }
	public NodeList Second { get; set; }
	public int TailIndex { get; set; }
}

}