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

namespace p16_functii
{
    class Program
    {
        static void schimba(int a, int b)//prin valoare
        {
            int aux = a; a = b; b = aux;
        }

        static void inter(ref int a, ref int b)//prin referinta
        {
            int aux = a; a = b; b = aux;
        }

        static void cifre(int n, out int sc, out int nc)//param de iesire
        {//suma si numarul de cifre
            sc = nc = 0;
            while (n != 0)
            {
                sc = sc + n % 10;
                nc++;
                n = n / 10;
            }
        }

        static void Main(string[] args)
        {
            int a = 234, b = 4;
            schimba(a, b);
            Console.WriteLine(a + " " + b);
            inter(ref a, ref b);
            Console.WriteLine(a + " " + b);
            cifre(234523, out a, out b);
            Console.WriteLine(a + " " + b);
            Console.ReadKey();
        }
    }
}