using System;

public class Program

{

    public static void Main()

    {

        int x,m=0,c=0;

        Random rnd=new Random();

    for(int i=1;i<30;i++)

    {

        x = rnd.Next(0,21);

        if(x%4==0)

        {

            c++;

        m+=x;

        }

    }

            Console.WriteLine("counter="+c);

        Console.WriteLine("summary="+c);

    } 

    }

​

​