import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int m = sc.nextInt();
        int[][] matrix = new int[m][m];
        int position = 1;
        int col = 0;
        int row = 0;


        while (position < m * m) {

            matrix[col][row] = position;
            if (col - 2 >= 0 && row - 1 >= 0 && matrix[col - 2][row - 1] == 0) {
                col -= 2;
                row -= 1;
                position++;
                continue;
            }
            if (col - 2 >= 0 && row + 1 < matrix.length && matrix[col - 2][row + 1] == 0) {
                col -= 2;
                row += 1;
                position++;
                continue;
            }
            if (col - 1 >= 0 && row - 2 >= 0 && matrix[col - 1][row - 2] == 0) {
                col -= 1;
                row -= 2;
                position++;
                continue;
            }
            if (col - 1 >= 0 && row + 2 < matrix.length && matrix[col - 1][row + 2] == 0) {
                col -= 1;
                row += 2;
                position++;
                continue;
            }
            if (col + 1 < matrix.length && row - 2 >= 0 && matrix[col + 1][row - 2] == 0) {
                col += 1;
                row -= 2;
                position++;
                continue;
            }
            if (col + 1 < matrix.length && row + 2 < matrix.length && matrix[col + 1][row + 2] == 0) {
                col += 1;
                row += 2;
                position++;
                continue;
            }
            if (col + 2 < matrix.length && row - 1 >= 0 && matrix[col + 2][row - 1] == 0) {
                col += 2;
                row -= 1;
                position++;
                continue;
            }
            if (col + 2 < matrix.length && row + 1 < matrix.length && matrix[col + 2][row + 1] == 0) {
                col += 2;
                row += 1;
                position++;
                continue;

            } else {
                int a=0;
                for (int i = 0; i < m; i++) {
                    for (int j = 0; j < m; j++) {

                        if (matrix[i][j] == 0&&a==0) {
                            a++;
                            position++;
                            matrix[i][j] = position;
                            col=i;
                            row=j;

                        }
                    }
                }
            }

        }
        for (int i = 0; i < m; i++) {
            for (int j = 0; j < m; j++) {
                System.out.print(matrix[i][j] + " ");
            }
            System.out.println();

        }
    }
}