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

namespace ConsoleApplication3
{

    class Program
    {
        static void Main(string[] args)
        {
            List<int> numb = new List<int> { 1, 5, 7, 19 };
            for (int i = 0; i < numb.Count; i++)
            {
                numb.Select(x => Calc(numb[i]));
            }
            foreach (var item in numb)
            {
                Console.WriteLine(item);
            }

        }
        private static int Calc(int x)
        {

            return x + 5;
        }
    }
}