using System;

public class Program

{

    public static void Main()

    {

        int[] arr  = new int[] {3,4,10,20,2,1};

        int sumResult=0;

        for(int i =0;i<arr.Length;i++){

            sumResult = sumResult+arr[i];

         Console.WriteLine(sumResult);

        }

        Console.WriteLine(sumResult);

    }

}