import java.util.*;

public class Main {
    public static void main(String[] args) {
        /*
蛇形矩阵是由1开始的自然数依次排列成的一个矩阵上三角形。
例如,当输入5时,应该输出的三角形为:
1 3 6 10 15 ||
2 5 9 14    ||
4 8 13      ||
7 12        ||
11          ||
          */
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[][] arr = new int[n][];
        //先给第一行赋值;
        arr[0] = new int[n];
        int num = 2;
        arr[0][0] = 1;
        for (int j = 1; j < n; j++) {
            arr[0][j] = arr[0][j - 1] + num;
            num = num + 1;
        }
        //从第二行开始给每个一维数组赋值
        for (int i = 1; i < n; i++) {
            arr[i] = new int[n - i];
            for (int j = 0; j < arr[i].length; j++) {
                arr[i][j] = arr[i - 1][j + 1] - 1;
            }
        }
        for (int i = 0; i < arr.length ; i++) {
            for (int j = 0; j < arr[i].length; j++) {
                System.out.print(arr[i][j] + " ");
            }
            System.out.println();
        }
    }
}