using System;

public class Program

{

    public static void Main()

    {

        int[] v=new int[100];

        int n=int.Parse(Console.ReadLine());

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

            v[i]=int.Parse(Console.ReadLine());

        int p;

        int suma1=0;

        int suma2=0;

        for(p=0;p<n;p++){

            for(int i=0;i<n;i++){

                if(i<=p) suma1+=v[i];

                else suma2+=v[i];

            }

            if(suma1==suma2) Console.WriteLine(p+" ");

        }

    }

}

//Nu am gasit un algoritm in O(N).