using System;

public class Program

{

    public static void Main()

    {

        int round = 0;

        int c_shir = 0;

        int c_li = 0;

​

        while (c_shir<3 && c_li<3)

        {   round++;

​

         if (round % 2 == 1) //shir turn

         {  Console.WriteLine("enter the result of round " + round + " of shir" + " : ");

            string toss = Console.ReadLine();

             if (toss == "etz")

               { c_shir++;

               }

         }

         else if (round % 2 == 0) //li turn

         {  Console.WriteLine("enter the result of round " + round + " of li" + " : ");

            string toss = Console.ReadLine();

             if (toss == "etz")

               { c_li++;

               }

         }

​

        }

        if (c_shir==3)

        { Console.WriteLine("shir begins!");

        } 

        else if (c_li==3)

        { Console.WriteLine("li begins!");

        }

    }

}