using System;

    using System.Linq;

​

    public class  Program

    {

        static int[] Numbers(string e, params char[] sk) {

            string[] zod = e.Split(sk, StringSplitOptions.RemoveEmptyEntries);

            int[] num = new int[zod.Length];

            int n = 0;

            foreach (string t in zod) {

                if (int.TryParse(t, out num[n])) {

                    n++;

                }

            }

            if (n > 0) {

                Array.Resize(ref num, n);

            }

            else {

                num = null;

            }

            return num;

        }

​

        static void suma(int[] z) {

            int a = 0;

            a = z.Sum();

            Console.WriteLine("skaiciu suma: {0}", a);

        }

        static void sandauga(int[] z) {

            int a = 1;

            foreach(int skaicius in z){

                a = skaicius * a;

            }

        Console.WriteLine("skaiciu sandauga: {0}", a);

        }

        static void kiekis(int[] z) {

            int a = 0;

            foreach(int skaicius in z){

                a = a + 1;

            }

        Console.WriteLine("skaiciu kiekis: {0}", a);

        }

        static void dydis(int[] z) {

        }

        public static void Main(){

            string inpt = Console.ReadLine();

            int[] a = Numbers(inpt);

            suma(a);

            sandauga(a);

            kiekis(a);

        }

    }