using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            int size = 8;
            int[,] arr = new int[size, size];

            for (int k = 0; k < size; k++)
            {
                bool match = true;
                for (int i = 0; i < size && match; i++)
                {
                    if (arr[k, i] != arr[i, k])
                        match = false;
                }
                if (match)
                    Console.WriteLine(k);
            }
        }
    }
}