Condense Array To Number

using System;
using System.Linq;

public class Program
{
	public static void Main()
	{
		int [] nums = Console.ReadLine().Split().Select(int.Parse).ToArray();



		int counter = nums.Length;

		while (counter >1)
		{


			for (int i=0; i<nums.Length-1; i++)
			{
				nums [i]= nums[i]+nums [i+1];
			}
			 counter--;
		}

			Console.WriteLine(nums[0]);
	}
}