using System;

public class Program

{

    public static void Main()

    {

        string [] namess = new string [5] { "Sergei", "Vasya", "Anders", "Oleg", "Kirill" };

        string [] zap = new string [5] { ", ", ", ", ", ",", ", " "};

        int a = 0;

        int c = 0;

        do

        {           

            Console.Write(namess[a]);

            Console.Write(zap[a]);

            a++;

            c++;

        }

        while (a < namess.Length || c < zap.Length);

    }

}