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

namespace ConsoleApp2
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = 9;
            Random rand = new Random();
            int[,] arr = new int[n, n];
            for (int i = 0; i < n; i++)
            {
                for (int j = 0; j < n; j++)
                {
                    arr[i, j] = rand.Next(50);
                }
            }
            for (int i = 0; i < n - 1; i++)
            {
                if (arr[1, i] % 3 == 0)
                    Console.WriteLine(arr[1, i]);
            }
            for (int j = 0; j < n - 1; j++)
            {
                if (arr[1, j] % 3 == 0)
                    Console.WriteLine(arr[1, j]);
            }
            Console.ReadKey();
                        }
        }
    }