@Override
    public void task18() {
        Scanner scanner = new Scanner(System.in);
        final int n = scanner.nextInt();
        int[][] a = readMatrix(scanner, n);

        int max = Integer.MIN_VALUE;
        for (int i = 0; i < n; i++)
            max = Math.max(max, Arrays.stream(a[i]).max().getAsInt());

        Set<Integer> rowSet = new HashSet<>();
        Set<Integer> columnSet = new HashSet<>();
        IntStream.range(0, n).forEach(rowSet::add);
        IntStream.range(0, n).forEach(columnSet::add);

        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                if (a[i][j] == max) {
                    rowSet.remove(i);
                    columnSet.remove(j);
                }
            }
        }

        System.out.printf("%d%n", rowSet.size());
        System.out.printf("%d%n", columnSet.size());

        for (Integer row : rowSet) {
            for (Integer column : columnSet) {
                System.out.printf("%d\t", a[row][column]);
            }
            System.out.printf("%n");
        }
    }

    private int[][] readMatrix(Scanner scanner, int n) {

        int[][] matrix = new int[n][n];
        for (int row = 0; row < n; ++row) {
            for (int col = 0; col < n; ++col) {
                matrix[row][col] = scanner.nextInt();
            }
        }
        return matrix;
    }