Pr6ArrLab

import java.util.Arrays;
import java.util.Scanner;

public class Pr6PrintDiagonalsOfSquareMatrix {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int n = Integer.parseInt(scanner.nextLine());

        int[][] matrix = new int[n][];

        for (int i = 0; i < n; i++) {
            int[] line = Arrays
                    .stream(scanner.nextLine().split("\\s+"))
                    .mapToInt(Integer::parseInt)
                    .toArray();
            matrix[i] = line;
        }
        printingDiagonalsOfSquareMatrixTwoDemension(matrix);
    }

    private static void printingDiagonalsOfSquareMatrixTwoDemension(int[][] matrix) {
        for (int row = 0; row < matrix.length; row++) {
            for (int col = 0; col < matrix[row].length; col++) {
                if (row == col){
                    System.out.print(matrix[row][col] + " ");
                }
            }
        }
        System.out.println();
        for (int row = 0; row < matrix.length; row++) {
            System.out.print(matrix[matrix.length-row-1][row] + " ");
        }
    }
}