package homework;

import java.util.Scanner;

public class prompt17
{
	 public static void main(String[] args)
	    {
	        Scanner input = new Scanner(System.in);
	        int[][] square = new int[4][4];

	        for (int row = 0; row < 4; row++)
	        {
	            for (int column = 0; column < 4; column++)
	            {
	                System.out.println("Enter number in row " + (row + 0) + " column " + (column + 0));
	                square[row][column] = input.nextInt();
	            }
	        }

	        int sum = square[0][0] + square[1][0] + square[2][0] + square[3][0];

	        System.out.println(square[0][0] + " " + square[0][1] + " " + square[0][2] + " " + square[0][3]);
	        System.out.println(square[1][0] + " " + square[1][1] + " " + square[1][2] + " " + square[1][3]);
	        System.out.println(square[2][0] + " " + square[2][1] + " " + square[2][2] + " " + square[2][3]);
	        System.out.println(square[3][0] + " " + square[3][1] + " " + square[3][2] + " " + square[3][3]);

	        int sumRow0 = square[0][0] + square[0][1] + square[0][2] + square[0][3];

	        int sumRow1 = square[1][0] + square[1][1] + square[1][2] + square[1][3];

	        int sumRow2 = square[2][0] + square[2][1] + square[2][2] + square[2][3];

	        int sumRow3 = square[3][0] + square[3][1] + square[3][2] + square[3][3];

	        int sumColumn0 = square[0][0] + square[1][0] + square[2][0] + square[3][0];

	        int sumColumn1= square[0][1] + square[1][1] + square[2][1] + square[3][1];

	        int sumColumn2= square[0][2] + square[1][2] + square[2][2] + square[3][2];

	        int sumColumn3= square[0][3] + square[1][3] + square[2][3] + square[3][3];

	        int sumDiagonal = square[0][0] + square[1][1] + square[2][2] + square[3][3];

	        int sumBackwardDiagonal = square[0][3] + square[1][2] + square[2][1] + square[3][0];


	        if(sumRow0 == sum && sumRow1 == sum && sumRow2 == sum && sumRow3 == sum && sumColumn0 == sum && sumColumn1 == sum
	           && sumColumn2 == sum && sumColumn3 == sum && sumDiagonal == sum && sumBackwardDiagonal == sum)
	            {
	            	System.out.println("They form a magic square!");
	            }
	        else
	            {
	            	System.out.println("They don't form a magic square!");
	            }
	    }

}