using System;

public class Program

{

    public static void Main()

    {

        int [,] a = new int [4,4];

        int x, sum = 0;

        for(int i = 0; i < 4; i++)

        {

            x = a[i,0];

            sum = sum + x;

        }

        int [] arr = new int [4];

        for(int i = 0; i < 4; i++)

        {

            for(int j = 0; j < 4; j++)

            {

                x = a[i,j];

                arr[i] = arr[i] + x;

            }

            if(arr[i]!=sum) Console.WriteLine("הריבוע לא קסם");

        }

    }

}