import sys
input = lambda: sys.stdin.readline().rstrip()
ii = lambda: int(input())
mi = lambda: map(int, input().split())
li = lambda: list(mi())
INF = 2 ** 63 - 1
mod = 998244353

n = ii()

a = [[0] * n for _ in range(n)]

for i in range(n):
    for j in range(n):
        a[i][j] = (i + j) % n + 1

for v in a:
    print(*v)