Diagonal Difference(calculate the absolute difference between the sums of its diagonals)

import java.util.*;

public class Solution
{
    public static void main(String args[])
    {
        int rl=0,lr=0,abs;

        Scanner sc = new Scanner(System.in);
        // System.out.println("Enter The Size Of An Array");
        int m = sc.nextInt();
        
        // System.out.println("Now Enter The Element In The Array");

        int[][] array = new int[m][m];

        for(int i=0;i<m;i++)
        {
            for(int j=0;j<m;j++)
            {
                array[i][j] = sc.nextInt();
            }
        }
//lr
        for(int i=0;i<m;i++)
        {
            for(int j=0;j<m;j++)
            {
                if(i==j)
                {
                    lr += array[i][j];
                }
            }
        }
//rl
        for(int i=0;i<m;i++)
        {
            for(int j=0;j<m;j++)
            {
                if(i+j==(m-1))
                rl += array[i][j];
            }
        }
            
        // System.out.println("lr: "+lr+" \n rl: "+rl);
        abs = lr-rl;

        System.out.println(Math.abs(abs));
    }
}