#!/usr/bin/env PyPy3

from collections import Counter, defaultdict, deque
import itertools
import re
import math
from functools import reduce
import operator
import bisect
from heapq import *
import typing



mod=1000000007
 
import sys
input = sys.stdin.readline
from itertools import accumulate
n = int(input())
ans = [[0] * n for _ in range(n)]
for i in range(n):
    for j in range(n):
        ans[i][j] = (i + j) % n + 1
for i in range(n):
    print(*ans[i])