rekursiq - sbor ot n chisla

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

namespace ConsoleApp3
{
    class Program
    {

        static int Sbor(int n)
        {
            if (n == 1) return 1;
            return (n + Sbor(n - 1));
        }

        static void Main(string[] args)
        {
            Console.WriteLine(Sbor(5));
        }
    }
}