EqualSums_Ver.2.0_27.05.2016

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

namespace EqualSums_27._05._2016
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] number = Console.ReadLine().Split(' ').Select(int.Parse).ToArray();
            int sumLeft = 0;
            int sumRight = 0;
            int index = 0;

            for (int i = 1; i < number.Length - 1; i++)
            {
                sumLeft = 0;
                for (int iLeft = 0; iLeft < i; iLeft++)
                {
                    sumLeft += number[iLeft];
                }

                if (sumLeft == number[i])
                {
                    sumRight = 0;
                    for (int iRight = i + 1; iRight < number.Length; iRight++)
                    {
                        sumRight += number[iRight];
                    }
                }
                if (sumLeft == sumRight)
                {
                    index = i;
                    break;
                }

            }
            Print(number, index);
        }

        static void Print(int[] inputNumbers, int index)
        {
            if (index != 0)
            {
                Console.WriteLine(index);
            }
            else if (index == 0 && inputNumbers.Length > 2)
            {
                Console.WriteLine("no");
            }

            if (inputNumbers.Length == 2)
            {
                Console.WriteLine("no");
            }

            if (inputNumbers.Length == 1)
            {
                Console.WriteLine(0);
            }
        }
    }
}